BEGIN:VCALENDAR
METHOD:PUBLISH
PRODID:-//Apple Inc.//iCal 3.0//EN
CALSCALE:GREGORIAN
X-WR-CALNAME:Topology Seminars at Berkeley
X-WR-RELCALID:7E99DA13-7C2B-4EAE-8593-F6223612F415
VERSION:2.0
X-WR-TIMEZONE:US/Pacific
BEGIN:VTIMEZONE
TZID:US/Pacific
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
DTSTART:19621028T020000
RRULE:FREQ=YEARLY;UNTIL=20061029T090000Z;BYMONTH=10;BYDAY=-1SU
TZNAME:PST
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
DTSTART:19870405T020000
RRULE:FREQ=YEARLY;UNTIL=20060402T100000Z;BYMONTH=4;BYDAY=1SU
TZNAME:PDT
END:DAYLIGHT
BEGIN:DAYLIGHT
TZOFFSETFROM:-0800
TZOFFSETTO:-0700
DTSTART:20070311T020000
RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU
TZNAME:PDT
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0700
TZOFFSETTO:-0800
DTSTART:20071104T020000
RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU
TZNAME:PST
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
SEQUENCE:4
TRANSP:OPAQUE
UID:45752220-7C6C-46E3-84EB-6107501458E9
DTSTART;TZID=US/Pacific:20061107T160000
DTSTAMP:20061031T023639Z
SUMMARY:Math Soccer
CREATED:20081019T021420Z
DTEND;TZID=US/Pacific:20061107T180000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:4
DESCRIPTION:In 939 Evans\,\nHeegaard Floer homology warm-up
UID:FC5F1F18-3D8C-4422-B392-B3C3761A3117
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070905T140000
DTSTAMP:20070902T221523Z
SUMMARY:Andy Cotton
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20070905T150000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:6
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20080827T160000
DTSTAMP:20080826T230220Z
SUMMARY:Topology Seminar
EXDATE;TZID=US/Pacific:20081119T160000
EXDATE;TZID=US/Pacific:20080910T160000
EXDATE;TZID=US/Pacific:20081126T160000
EXDATE;TZID=US/Pacific:20081203T160000
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20080827T170000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20081213T075959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20081210T160000
DTSTAMP:20080921T004139Z
SUMMARY:Danny Calegari
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20081210T170000
RECURRENCE-ID;TZID=US/Pacific:20081210T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20080917T160000
DTSTAMP:20080918T001954Z
SUMMARY:Teena Gerhard
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20080917T170000
RECURRENCE-ID;TZID=US/Pacific:20080917T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20081015T160000
DTSTAMP:20080921T004019Z
SUMMARY:Stanislav Jabuka
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20081015T170000
RECURRENCE-ID;TZID=US/Pacific:20081015T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20081022T160000
DTSTAMP:20080921T004031Z
SUMMARY:Ken Baker
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20081022T170000
RECURRENCE-ID;TZID=US/Pacific:20081022T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20080827T160000
DTSTAMP:20080826T230246Z
SUMMARY:Topology Seminar\, Konrad Waldorf
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20080827T170000
RECURRENCE-ID;TZID=US/Pacific:20080827T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20081029T160000
DTSTAMP:20080921T004049Z
SUMMARY:Chris Woodward
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20081029T170000
RECURRENCE-ID;TZID=US/Pacific:20081029T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20081105T160000
DTSTAMP:20080921T004106Z
SUMMARY:Andrew Blumberg
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20081105T170000
RECURRENCE-ID;TZID=US/Pacific:20081105T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20081008T160000
DTSTAMP:20080918T002042Z
SUMMARY:Noah Snyder
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20081008T170000
RECURRENCE-ID;TZID=US/Pacific:20081008T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20081001T160000
DTSTAMP:20080918T002017Z
SUMMARY:Christian Zickert
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20081001T170000
RECURRENCE-ID;TZID=US/Pacific:20081001T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20081112T160000
DTSTAMP:20080921T004123Z
SUMMARY:Mark Behrens
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20081112T170000
RECURRENCE-ID;TZID=US/Pacific:20081112T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20080924T160000
DTSTAMP:20080918T002005Z
SUMMARY:Matt Hedden
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20080924T170000
RECURRENCE-ID;TZID=US/Pacific:20080924T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:D310E38F-8FB0-4B98-A83B-6E84591A8D9B
DTSTART;TZID=US/Pacific:20080903T160000
DTSTAMP:20080831T210741Z
SUMMARY:Topology Seminar\, Konrad Waldorf
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20080903T170000
RECURRENCE-ID;TZID=US/Pacific:20080903T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:5
DESCRIPTION:939 Evans\n\"Functors for Bicategories\"\nThere are lots of 
 examples of categories in mathematics\, but the language of category the
 ory isn't very useful until you also know about functors between differe
 nt categories. This is a continuation of my previous talk on bicategorie
 s. Last time I gave the definition of a bicategory and gave a host of ex
 amples. In this talk we will define functors between bicategories and na
 tural transformations between the functors. We'll also discuss a new hig
 her categorical feature called \"modifications\". These are essentially 
 natural transformations between the natural transformations. Morita theo
 ry will give us a good working example.
UID:18AED06D-D349-41F1-B185-29569CC0B672
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071107T140000
DTSTAMP:20071105T174507Z
SUMMARY:Chris Schommer-Pries
CREATED:20081019T021415Z
DTEND;TZID=US/Pacific:20071107T150000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:21
DESCRIPTION:71 Evans
UID:65A959DA-2078-4DCC-BFA8-10529ECE8B05
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061012T140000
DTSTAMP:20060916T002527Z
SUMMARY:Hot Topic
CREATED:20081019T021424Z
DTEND;TZID=US/Pacific:20061012T153000
LOCATION:71 Evans
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20061102T075959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:19
DESCRIPTION:71 Evans
UID:65A959DA-2078-4DCC-BFA8-10529ECE8B05
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061012T140000
DTSTAMP:20060916T002724Z
SUMMARY:Hot Topic Course: Arturo Prat-Waldron
CREATED:20081019T021424Z
DTEND;TZID=US/Pacific:20061012T153000
LOCATION:71 Evans
RECURRENCE-ID;TZID=US/Pacific:20061012T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:21
DESCRIPTION:71 Evans
UID:65A959DA-2078-4DCC-BFA8-10529ECE8B05
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061019T140000
DTSTAMP:20060916T002959Z
SUMMARY:Hot Topic Course: Aaron McMillan and Dave Brown
CREATED:20081019T021424Z
DTEND;TZID=US/Pacific:20061019T153000
LOCATION:71 Evans
RECURRENCE-ID;TZID=US/Pacific:20061019T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:21
DESCRIPTION:71 Evans
UID:65A959DA-2078-4DCC-BFA8-10529ECE8B05
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061026T140000
DTSTAMP:20060916T002730Z
SUMMARY:Hot Topic Course: Xinwen Zhu
CREATED:20081019T021424Z
DTEND;TZID=US/Pacific:20061026T153000
LOCATION:71 Evans
RECURRENCE-ID;TZID=US/Pacific:20061026T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:5
TRANSP:OPAQUE
UID:2419DE10-F764-4FCB-B82F-7B781D73222F
DTSTART;TZID=US/Pacific:20061113T160000
DTSTAMP:20061029T175604Z
SUMMARY:Witten's Bowen Lecture 1
CREATED:20081019T021415Z
DTEND;TZID=US/Pacific:20061113T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:5
TRANSP:OPAQUE
UID:23641DF2-6057-4756-8818-709E131210AC
DTSTART;TZID=US/Pacific:20061115T110000
DTSTAMP:20061029T175617Z
SUMMARY:Witten's Bowen Lecture 3
CREATED:20081019T021415Z
DTEND;TZID=US/Pacific:20061115T120000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:27
DTSTART;TZID=US/Pacific:20061102T140000
DTSTAMP:20060916T003056Z
SUMMARY:Hot Topic Course: 
EXDATE;TZID=US/Pacific:20061123T140000
EXDATE;TZID=US/Pacific:20060928T140000
DTEND;TZID=US/Pacific:20061102T153000
LOCATION:71 Evans
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20061208T075959Z
DESCRIPTION:71 Evans
UID:6FE0C2A0-2D52-47A3-98EB-5858506FE1AB
TRANSP:OPAQUE
CREATED:20081019T021425Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:18
DESCRIPTION:\"The Topological Witten Genus\"\n\nWork of Ando\, Hopkins\,
  and Strickland has shown that elliptic cohomology theories are \"string
 -orientable\". I will explain what this statement means and how it can b
 e proven using the formalism of derived algebraic geometry.
UID:6FE0C2A0-2D52-47A3-98EB-5858506FE1AB
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061207T140000
DTSTAMP:20061202T010727Z
SUMMARY:Hot Topics Course: Jacob Lurie
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20061207T153000
LOCATION:71 Evans
RECURRENCE-ID;TZID=US/Pacific:20061207T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:22
DESCRIPTION:71 Evans
UID:6FE0C2A0-2D52-47A3-98EB-5858506FE1AB
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061102T140000
DTSTAMP:20061014T235341Z
SUMMARY:Hot Topic Course: Fei Han
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20061102T153000
LOCATION:71 Evans
RECURRENCE-ID;TZID=US/Pacific:20061102T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:23
DESCRIPTION:71 Evans
UID:6FE0C2A0-2D52-47A3-98EB-5858506FE1AB
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061109T140000
DTSTAMP:20061014T235346Z
SUMMARY:Hot Topic Course: Joel Kamnitzer
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20061109T153000
LOCATION:71 Evans
RECURRENCE-ID;TZID=US/Pacific:20061109T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:23
DESCRIPTION:71 Evans
UID:6FE0C2A0-2D52-47A3-98EB-5858506FE1AB
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061116T140000
DTSTAMP:20060916T002843Z
SUMMARY:Hot Topic Course: Chris Pries
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20061116T153000
LOCATION:71 Evans
RECURRENCE-ID;TZID=US/Pacific:20061116T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:25
DESCRIPTION:71 Evans
UID:6FE0C2A0-2D52-47A3-98EB-5858506FE1AB
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061130T140000
DTSTAMP:20060916T003048Z
SUMMARY:Hot Topic Course: Scott Carnahan
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20061130T153000
LOCATION:71 Evans
RECURRENCE-ID;TZID=US/Pacific:20061130T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:3
TRANSP:OPAQUE
UID:49FBADA1-F5A0-4161-9F1D-75BF15D14587
DTSTART;TZID=US/Pacific:20061018T180000
DTSTAMP:20061016T042340Z
SUMMARY:Pizza@Jupiter
CREATED:20081019T021420Z
DTEND;TZID=US/Pacific:20061018T200000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:5
DESCRIPTION:\"Elliptic Cohomology\"\n\nElliptic cohomology lies at the i
 ntersection of several mathematical disciplines\, including algebraic to
 pology\, algebraic geometry\, number theory\, and mathematical physics. 
 In this talk\, I will introduce the theory of elliptic cohomology from a
  homotopy theorist's perspective. If time permits\, I will describe some
  of the (still conjectural) connections with physics\, via the \"topolog
 ical Witten genus\".
UID:309E70E5-13A2-43BC-8C1D-7E47474B46D4
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061207T160000
DTSTAMP:20061126T235440Z
SUMMARY:Colloquium by Jacob Lurie
CREATED:20081019T021420Z
DTEND;TZID=US/Pacific:20061207T170000
LOCATION:60 Evans
END:VEVENT
BEGIN:VEVENT
SEQUENCE:11
DESCRIPTION:An introduction to this hot topics course will be given\, na
 mely to \"derived algebraic geometry and topology\".
UID:B60F4429-2220-4068-A2A8-5C06E125C5EF
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060831T140000
DTSTAMP:20060916T002623Z
SUMMARY:Hot Topic Course: Peter Teichner
CREATED:20081019T021431Z
DTEND;TZID=US/Pacific:20060831T153000
LOCATION:2 Evans
END:VEVENT
BEGIN:VEVENT
SEQUENCE:26
DTSTART;TZID=US/Pacific:20060830T160000
DTSTAMP:20061114T024642Z
SUMMARY:Visitor Seminar
EXDATE;TZID=US/Pacific:20061004T160000
EXDATE;TZID=US/Pacific:20060927T160000
EXDATE;TZID=US/Pacific:20061011T160000
EXDATE;TZID=US/Pacific:20061122T160000
DTEND;TZID=US/Pacific:20060830T170000
LOCATION:3 Evans
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20061208T075959Z
DESCRIPTION:3 Evans
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
CREATED:20081019T021421Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:31
DESCRIPTION:\"Weak 2-categories of groupoids and bibundles\"\n\nMany str
 uctures in topology are naturally described by groupoids\n(fundamental g
 roupoid\, holonomy\, monodromy etc.). But often we are\nonly interested 
 in a part of the structural information of a groupoid\nsuch as the isotr
 opy bundle (e.g. fundamental group) or the stack it\npresents. This lead
 s to different concepts of morphisms of groupoids.\nImportant examples a
 re topological and differentiable bibundles\,\nprincipal bibundles\, and
  isomorphism classes of bibundles. I will review the various (bi)categor
 ies that arise in these cases and show\nhow they are related.
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061129T160000
DTSTAMP:20061126T235417Z
SUMMARY:Christian Blohmann\, UCB
CREATED:20081019T021421Z
DTEND;TZID=US/Pacific:20061129T170000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20061129T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:14
DESCRIPTION:\"The geometric role of the fundamental group: playing Novik
 ov's game.\"\n\nAbstract: In 1970\, S.P.Novikov received the Fields meda
 l in\nrecognition of his proof of the topological invariance of the real
 \ncharacteristic classes of vector bundles.  One of the offshoots of\nth
 is work was Novikov's conjecture on the homotopy invariance of\n\"higher
  signatures\" which describes what the variability of\ncharacteristic cl
 asses within a homotopy type should be.  While this\nhas been verified i
 n many cases\, it remains open.\n\nI will try to explain the gap between
  Novikov's conjecture and\ntheorem.  This gains significance because the
  \"Novikov idea\" has since\nbeen replayed a number of times in settings
  of differential geometry\,\ntransformation groups and algebraic geometr
 y.  I will also try to\nexplain how this perspective unifies theorems (a
 nd conjectures) in\nthese areas.
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060830T160000
DTSTAMP:20060818T014335Z
SUMMARY:Shmuel Weinberger\, University of Chicago
CREATED:20081019T021421Z
DTEND;TZID=US/Pacific:20060830T170000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20060830T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:14
DESCRIPTION:\"Natural Functionals and Homotopy Theory\"
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060906T160000
DTSTAMP:20060901T183916Z
SUMMARY:Stefan Bechtluft-Sachs\, American University in Beirut
CREATED:20081019T021421Z
DTEND;TZID=US/Pacific:20060906T170000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20060906T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:20
DESCRIPTION:3 Evans
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061115T160000
DTSTAMP:20061104T213650Z
SUMMARY:Math Soccer
CREATED:20081019T021421Z
DTEND;TZID=US/Pacific:20061115T170000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20061115T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:29
DESCRIPTION:\"Super symmetric field theories and integral modular forms\
 "\n\nThis is a report on a joint project with Peter Teichner with the \n
 eventual goal of relating elliptic cohomology to 2-dimensional conformal
  field theories. Evidence is provided by the fact that the ‘partition fu
 nction’ of a super\nsymmetric conformal field theory is an integral modu
 lar form. We will concentrate on explaining this aspect of our project.
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061018T160000
DTSTAMP:20061016T042332Z
SUMMARY:Stephan Stolz\, Univ. of Notre Dame
CREATED:20081019T021421Z
DTEND;TZID=US/Pacific:20061018T173000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20061018T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:21
DESCRIPTION:\"3-manifolds and self dual binary codes\"\n\nThis is joint 
 work with Volker Puppe (Konstanz). We assign to a\n3-manifold with invol
 ution a binary code.  If the involution has only\nfinitely many fixed po
 ints\, this code is self dual\, codes which are of\nparticular interest.
  The natural question arises\, which self dual codes arise this way. The
  answer is: all. I will explain\, why this is the \ncase.\n\nIn principl
 e  it is easy to construct codes\, but interesting codes are\nrare. Here
  interesting means that they have good error correcting\nproperties. The
  hope is that the appearence of codes in topology allows unexpected cons
 tructions. Unfortunately we know only one indication\, why this might be
  the case: The conjugation on the 3-torus leads to a very interesting co
 de\, the Hammning code of rank 8.  Another natural question is to relate
  the topology to the number of errors that can be corrected.\nI will exp
 lain a first result in this direction\, which relates Spin\nstructures o
 n a 4-manifold constructed from the involution to the number of errors.\
 n
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061108T160000
DTSTAMP:20061126T234651Z
SUMMARY:Matthias Kreck\, University of Heidelberg
CREATED:20081019T021421Z
DTEND;TZID=US/Pacific:20061108T170000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20061108T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:15
DESCRIPTION:\"Dimers on surface graphs and spin structures\"\n\nIn the 6
 0's\, W. Kasteleyn showed that the partition function for the\ndimer mod
 el on a planar graph is equal to the Pfaffian of an N by N\nmatrix\, whe
 re N is the number of vertices of the graph. He also stated\nthat for an
 y graph G\, the partition function can be written as a linear\ncombinati
 on of 4^g Pfaffians\, where g denotes the genus of a surface S\nwhere G 
 can be embedded. A formal combinatorial proof of this fact was\nonly giv
 en in 1999 by Gallucio-Loeb and Tesler. In this talk\, we shall\nexplain
  a geometric proof of this fact. In our formula for the partition\nfunct
 ion\, each of the 4^g terms corresponds to a spin structure on S\, and e
 ach coefficient in the linear combination is equal to the Arf invariant 
 of the corresponding spin structure. This is joint work with Nicolai Res
 hetikhin.
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060913T160000
DTSTAMP:20060910T213623Z
SUMMARY:David Cimasoni\, UCB
CREATED:20081019T021421Z
DTEND;TZID=US/Pacific:20060913T170000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20060913T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:18
DESCRIPTION:\"The superpolynomial for knot homologies\"\n\nWe propose a 
 framework for unifying the sl(N) Khovanov-Rozansky homology (for all N) 
 with the knot Floer homology. We argue that this unification should be a
 ccomplished by a triply graded homology theory which categorifies the HO
 MFLY polynomial. Moreover\, this theory should have an additional formal
  structure of a family of differentials. Roughly speaking\, the triply g
 raded theory by itself captures the large N behavior of the sl(N) homolo
 gy\, and differentials capture non-stable behavior for small N\, includi
 ng knot Floer homology. The differentials themselves should come from an
 other variant of sl(N) homology\, namely the deformations of it studied 
 by Gornik\, building on work of Lee.\nWhile we do not give a mathematica
 l definition of the triply graded theory\, the rich formal structure we 
 propose is powerful enough to make many non-trivial predictions about th
 e existing knot homologies that can then be checked directly. We include
  many examples where we can exhibit a likely candidate for the triply gr
 aded theory\, and these demonstrate the internal consistency of our axio
 ms. We conclude with a detailed study of torus knots\, developing a pict
 ure which gives new predictions even for the original sl(2) Khovanov hom
 ology. (Joint work with Sergei Gukov and Jake Rasmussen.)
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061010T140000
DTSTAMP:20060926T230958Z
SUMMARY:Nathan Dunfield\, Caltech
CREATED:20081019T021421Z
DTEND;TZID=US/Pacific:20061010T150000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20060920T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:24
DESCRIPTION:\"On a categorification of Vassiliev theory\"\n\nMany Floer-
 type theories can be considered as categorifications of classical invari
 ants. We give the definition for such homology theory to be of finite ty
 pe and introduce examples of theories of finite order. Our main examples
  come from the Khovanov theory\, Euler characteristics of which is Jones
  polynomial\, we also have a simple example in Heegaard Floer homology.
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061025T160000
DTSTAMP:20061015T060128Z
SUMMARY:Nadya Shirokova\, Stanford
CREATED:20081019T021421Z
DTEND;TZID=US/Pacific:20061025T170000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20061025T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:19
DESCRIPTION:\"Algebraic Groups and Equivariant Cohomology Theories\"\n\n
 I will describe a dictionary which relates equivariant cohomology theori
 es with (one-dimensional) algebraic groups. In special cases\, we will o
 btain classical equivariant K-theory\, and also equivariant versions of 
 elliptic cohomology. If time permits\, I will describe a relationship be
 tween the latter theory and the representation theory of loop groups.
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061206T160000
DTSTAMP:20061202T011019Z
SUMMARY:Jacob Lurie\, Harvard-AIM
CREATED:20081019T021421Z
DTEND;TZID=US/Pacific:20061206T170000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20061206T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:26
DESCRIPTION:\"Knotting and complexity\"\n\nDetermining whether a knot is
  trivial is one of the classical problems\nof topology.  More recently\,
  attention has been paid to the running time\,\nor computational complex
 ity\, of algorithms to determine knottedness.\nI'll survey some of this 
 work and discuss a recent contribution with\nAbigail Thompson that uses 
 probabilistic methods to show the non-triviality of certain knots.
UID:4FEDFBC2-C43B-4365-A0D9-FA7E654F0E24
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061101T160000
DTSTAMP:20061023T064758Z
SUMMARY:Joel Hass\, UC Davis
CREATED:20081019T021421Z
DTEND;TZID=US/Pacific:20061101T170000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20061101T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:6
DESCRIPTION:71 Evans
UID:E96696FF-2843-4171-9B80-442107A568F0
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060928T140000
DTSTAMP:20060916T002703Z
SUMMARY:Hot Topic Course: A.J. Tolland
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20060928T150000
LOCATION:71 Evans
END:VEVENT
BEGIN:VEVENT
SEQUENCE:18
TRANSP:OPAQUE
UID:7ABAE16C-2E90-4C43-B706-5830DA468991
DTSTART;TZID=US/Pacific:20060830T173000
DTSTAMP:20061104T213702Z
SUMMARY:Pizza@Jupiter
EXDATE;TZID=US/Pacific:20060927T173000
EXDATE;TZID=US/Pacific:20061018T173000
EXDATE;TZID=US/Pacific:20061122T173000
EXDATE;TZID=US/Pacific:20061004T173000
EXDATE;TZID=US/Pacific:20060920T173000
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20060830T193000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20061208T075959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:12
TRANSP:OPAQUE
UID:7ABAE16C-2E90-4C43-B706-5830DA468991
DTSTART;TZID=US/Pacific:20060830T173000
DTSTAMP:20060830T051303Z
SUMMARY:Dinner@Rafael's
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20060830T193000
RECURRENCE-ID;TZID=US/Pacific:20060830T173000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:20
TRANSP:OPAQUE
UID:7ABAE16C-2E90-4C43-B706-5830DA468991
DTSTART;TZID=US/Pacific:20061115T160000
DTSTAMP:20061104T213729Z
SUMMARY:No Seminar
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20061115T180000
RECURRENCE-ID;TZID=US/Pacific:20061115T173000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:5
DESCRIPTION:3 Evans\nTitle : Perturbative Chern-Simons theory\nAbstract 
 : This talk will explain a general construction of perturbative Chern-Si
 mons theory\, which leads to an extra algebraic structure on the cohomol
 ogy of any manifold.  This structure can be viewed as a kind of \"quanti
 sation\" of the rational homotopy type of the manifold.
UID:2C156B72-EDB7-4D63-AA47-A79CFD4520D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070912T160000
DTSTAMP:20070909T184329Z
SUMMARY:Kevin Costello\, Northwestern
CREATED:20081019T021419Z
DTEND;TZID=US/Pacific:20070912T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:6
DESCRIPTION:939 Evans\nTitle : A dual version of the ribbon graph decomp
 osition of moduli  spaces of surfaces.\nAbstract: I'll describe a dual v
 ersion of the ribbon graph decomposition of moduli space\, which can be 
 interpreted  as saying that the moduli spaces of surfaces are generated 
 by the A-infinity cyclic operad.
UID:966A3AFD-3293-44D8-97E3-3DC02793795E
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070912T140000
DTSTAMP:20070909T184312Z
SUMMARY:Kevin Costello\, Northwestern
CREATED:20081019T021427Z
DTEND;TZID=US/Pacific:20070912T150000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:2
DESCRIPTION:60 Evans\, Colloquium
UID:18C8763F-ACBB-4495-BD30-90CBA06620BA
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070906T160000
DTSTAMP:20070909T184506Z
SUMMARY:Jake Rasmussen
CREATED:20081019T021415Z
DTEND;TZID=US/Pacific:20070906T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:6
DESCRIPTION:72 Evans
UID:80C1EB6B-42B7-4CFF-8C10-A1B6CA18175B
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070911T140000
DTSTAMP:20070828T163505Z
SUMMARY:Hot topic course\, Kevin Costello
CREATED:20081019T021427Z
DTEND;TZID=US/Pacific:20070911T150000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:10
DESCRIPTION:Sibley Auditorium\,Bowen Lecture 1:\nHow topology will save 
 Moore's law: quantum computation via exotic states of matter
UID:6D7392F3-F55B-4C17-A5CB-74B2B4F95BC1
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071009T160000
DTSTAMP:20071008T220708Z
SUMMARY:Mike Freedman\, Project Q
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20071009T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:3
TRANSP:OPAQUE
UID:764DAF53-B84B-498C-AAE6-3C4C2CE4823A
DTSTART;TZID=US/Pacific:20061122T160000
DTSTAMP:20061104T213750Z
SUMMARY:No Seminar 
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20061122T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:12
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080123T140000
DTSTAMP:20080120T205031Z
SUMMARY:Student Topology Seminar
EXDATE;TZID=US/Pacific:20080130T140000
EXDATE;TZID=US/Pacific:20080326T140000
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080123T150000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20080503T065959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:10
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080402T140000
DTSTAMP:20080204T060401Z
SUMMARY:Student Topology Seminar\, Fei Han
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080402T150000
RECURRENCE-ID;TZID=US/Pacific:20080402T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:11
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080430T140000
DTSTAMP:20080424T032029Z
SUMMARY:Student Topology Seminar\, Jana Comstock\, UCB
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080430T150000
RECURRENCE-ID;TZID=US/Pacific:20080430T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:11
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080409T140000
DTSTAMP:20080322T135852Z
SUMMARY:Student Topology Seminar\, Fei Han
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080409T150000
RECURRENCE-ID;TZID=US/Pacific:20080409T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:10
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080213T140000
DTSTAMP:20080204T060320Z
SUMMARY:Student Topology Seminar\, Arturo Prat-Waldron
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080213T150000
RECURRENCE-ID;TZID=US/Pacific:20080213T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:10
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080416T140000
DTSTAMP:20080402T180112Z
SUMMARY:Topology Seminar\, Ko Honda\, USC
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080416T150000
RECURRENCE-ID;TZID=US/Pacific:20080416T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:11
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080206T140000
DTSTAMP:20080204T060634Z
SUMMARY:Topology Seminar\, Ben Weinkove (Harvard)
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080206T150000
RECURRENCE-ID;TZID=US/Pacific:20080206T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080123T140000
DTSTAMP:20080127T201550Z
SUMMARY:Student Topology Seminar\, Arturo Prat-Waldron (UCB)
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080123T150000
RECURRENCE-ID;TZID=US/Pacific:20080123T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080220T140000
DTSTAMP:20080120T210514Z
SUMMARY:Student Topology Seminar\, Jacob Lurie (MIT)
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080220T150000
RECURRENCE-ID;TZID=US/Pacific:20080220T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:12
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080312T140000
DTSTAMP:20080204T060350Z
SUMMARY:Student Topology Seminar\, Fei Han
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080312T150000
RECURRENCE-ID;TZID=US/Pacific:20080312T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:12
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080423T140000
DTSTAMP:20080419T234211Z
SUMMARY:Student Topology Seminar\, Noah Snyder\, UCB
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080423T150000
RECURRENCE-ID;TZID=US/Pacific:20080423T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080227T140000
DTSTAMP:20080222T075818Z
SUMMARY:Topology Seminar\, John Lott (Michigan)
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080227T150000
RECURRENCE-ID;TZID=US/Pacific:20080227T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:10
DESCRIPTION:939 Evans
UID:67BA3731-C13E-4ED1-9B0F-20ACFD21A964
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080305T140000
DTSTAMP:20080204T060339Z
SUMMARY:Student Topology Seminar\, Fei Han
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080305T150000
RECURRENCE-ID;TZID=US/Pacific:20080305T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:5
TRANSP:OPAQUE
UID:5E248DB0-6BF2-493A-809C-8B00D1DE3DAF
DTSTART;VALUE=DATE:20080127
DTSTAMP:20071122T202228Z
SUMMARY:25 Years MSRI
CREATED:20081019T021424Z
DTEND;VALUE=DATE:20080131
END:VEVENT
BEGIN:VEVENT
SEQUENCE:4
TRANSP:OPAQUE
UID:5AD6069A-3380-4057-9105-88711C617F5C
DTSTART;TZID=US/Pacific:20061113T170000
DTSTAMP:20061029T175622Z
SUMMARY:Receiption for Ed Witten
CREATED:20081019T021424Z
DTEND;TZID=US/Pacific:20061113T180000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080123T160000
DTSTAMP:20080120T203936Z
SUMMARY:Topology Seminar
EXDATE;TZID=US/Pacific:20080130T160000
EXDATE;TZID=US/Pacific:20080326T160000
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080123T170000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20080511T065959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080416T160000
DTSTAMP:20080317T034229Z
SUMMARY:Topology Seminar\, Mike Mandell (Indiana)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080416T170000
RECURRENCE-ID;TZID=US/Pacific:20080416T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080312T160000
DTSTAMP:20080120T204334Z
SUMMARY:Topology Seminar\, Mahmoud Zeinalian (LIU)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080312T170000
RECURRENCE-ID;TZID=US/Pacific:20080312T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080123T160000
DTSTAMP:20080120T204051Z
SUMMARY:Topology Seminar\, Dan Isaksen (Wayne State)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080123T170000
RECURRENCE-ID;TZID=US/Pacific:20080123T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080319T160000
DTSTAMP:20080120T204352Z
SUMMARY:Topology Seminar\, Marco Gualtieri (MIT)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080319T170000
RECURRENCE-ID;TZID=US/Pacific:20080319T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080227T160000
DTSTAMP:20080224T162037Z
SUMMARY:Topology Seminar\, Henning Hohnhold (UCSD)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080227T170000
RECURRENCE-ID;TZID=US/Pacific:20080227T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080213T160000
DTSTAMP:20080120T204212Z
SUMMARY:Topology Seminar\, Jim Conant (UTK)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080213T170000
RECURRENCE-ID;TZID=US/Pacific:20080213T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080220T160000
DTSTAMP:20080120T204226Z
SUMMARY:Topology Seminar\, Jacob Lurie (MIT)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080220T170000
RECURRENCE-ID;TZID=US/Pacific:20080220T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080423T160000
DTSTAMP:20080218T171040Z
SUMMARY:Topology Seminar\, Tim Cochran (Rice)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080423T170000
RECURRENCE-ID;TZID=US/Pacific:20080423T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080409T160000
DTSTAMP:20080218T171022Z
SUMMARY:Topology Seminar\, Eckhard Meinrenken (Toronto)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080409T170000
RECURRENCE-ID;TZID=US/Pacific:20080409T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080507T160000
DTSTAMP:20080218T171122Z
SUMMARY:Topology Seminar\, Craig Westerland (UWM)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080507T170000
RECURRENCE-ID;TZID=US/Pacific:20080507T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:10
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080402T160000
DTSTAMP:20080319T234530Z
SUMMARY:Topology Seminar\, Joel Kamnitzer\, UCB
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080402T170000
RECURRENCE-ID;TZID=US/Pacific:20080402T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080305T160000
DTSTAMP:20080120T204320Z
SUMMARY:Topology Seminar\, Wolfgang Lueck (Münster University)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080305T170000
RECURRENCE-ID;TZID=US/Pacific:20080305T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080430T160000
DTSTAMP:20080218T171102Z
SUMMARY:Topology Seminar\, Soren Galatius (Stanford)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080430T170000
RECURRENCE-ID;TZID=US/Pacific:20080430T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:3 Evans
UID:B4FC35D3-ED08-42FB-9E18-208410FA53B6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20080206T160000
DTSTAMP:20080120T204153Z
SUMMARY:Topology Seminar\, Marco Aldi (UC Berkeley)
CREATED:20081019T021430Z
DTEND;TZID=US/Pacific:20080206T170000
RECURRENCE-ID;TZID=US/Pacific:20080206T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:5
DESCRIPTION:In 939 Evans\,\nPath integrals over Euclidean spaces
UID:60F1B4D0-F183-4808-8747-F02BB1DAC9E3
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070829T140000
DTSTAMP:20070825T022617Z
SUMMARY:Bruce Driver\, UCSD
CREATED:20081019T021424Z
DTEND;TZID=US/Pacific:20070829T150000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20080827T140000
DTSTAMP:20080826T230151Z
SUMMARY:Student Seminar
EXDATE;TZID=US/Pacific:20080910T140000
EXDATE;TZID=US/Pacific:20081126T140000
EXDATE;TZID=US/Pacific:20081022T140000
CREATED:20081019T021419Z
DTEND;TZID=US/Pacific:20080827T153000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20081213T075959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20081029T140000
DTSTAMP:20081103T214021Z
SUMMARY:Chris Pries
CREATED:20080922T201005Z
DTEND;TZID=US/Pacific:20081029T153000
RECURRENCE-ID;TZID=US/Pacific:20081029T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20080924T140000
DTSTAMP:20080829T000738Z
SUMMARY:Student Seminar\, Chris Schommer-Pries
CREATED:20081019T021419Z
DTEND;TZID=US/Pacific:20080924T153000
RECURRENCE-ID;TZID=US/Pacific:20080924T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20081001T140000
DTSTAMP:20080921T003954Z
SUMMARY:Christian Zickert
CREATED:20081019T021419Z
DTEND;TZID=US/Pacific:20081001T153000
RECURRENCE-ID;TZID=US/Pacific:20081001T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20081008T140000
DTSTAMP:20080921T003942Z
SUMMARY:Kevin Walker
CREATED:20081019T021419Z
DTEND;TZID=US/Pacific:20081008T153000
RECURRENCE-ID;TZID=US/Pacific:20081008T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20080917T140000
DTSTAMP:20080829T000730Z
SUMMARY:Student Seminar\, Chris Schommer-Pries
CREATED:20081019T021419Z
DTEND;TZID=US/Pacific:20080917T153000
RECURRENCE-ID;TZID=US/Pacific:20080917T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20081119T140000
DTSTAMP:20081114T023107Z
SUMMARY:Dmitri Pavlov
CREATED:20081019T021419Z
DTEND;TZID=US/Pacific:20081119T153000
RECURRENCE-ID;TZID=US/Pacific:20081119T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20080903T140000
DTSTAMP:20080829T000721Z
SUMMARY:Student Seminar\, Chris Schommer-Pries
CREATED:20081019T021419Z
DTEND;TZID=US/Pacific:20080903T153000
RECURRENCE-ID;TZID=US/Pacific:20080903T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20081105T140000
DTSTAMP:20081103T214045Z
SUMMARY:Dmitri Pavlov
CREATED:20080922T201005Z
DTEND;TZID=US/Pacific:20081105T153000
RECURRENCE-ID;TZID=US/Pacific:20081105T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20081210T140000
DTSTAMP:20081013T203317Z
SUMMARY:Student Seminar
CREATED:20081019T021419Z
DTEND;TZID=US/Pacific:20081210T153000
RECURRENCE-ID;TZID=US/Pacific:20081210T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20081112T140000
DTSTAMP:20081103T214053Z
SUMMARY:Dmitri Pavlov
CREATED:20080922T201005Z
DTEND;TZID=US/Pacific:20081112T153000
RECURRENCE-ID;TZID=US/Pacific:20081112T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20081015T140000
DTSTAMP:20080930T171210Z
SUMMARY:Kevin Walker
CREATED:20081019T021419Z
DTEND;TZID=US/Pacific:20081015T153000
RECURRENCE-ID;TZID=US/Pacific:20081015T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
TRANSP:OPAQUE
UID:2E0D932A-0D39-482A-8B69-5D68D81BDAD1
DTSTART;TZID=US/Pacific:20080827T140000
DTSTAMP:20080826T230235Z
SUMMARY:Student Seminar\, Organizational meeting
CREATED:20081019T021419Z
DTEND;TZID=US/Pacific:20080827T153000
RECURRENCE-ID;TZID=US/Pacific:20080827T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:15
TRANSP:OPAQUE
UID:DB37CFAA-5997-4D15-9150-83B50043E7AD
DTSTART;TZID=US/Pacific:20070918T140000
DTSTAMP:20070919T164518Z
SUMMARY:Hot topic course
EXDATE;TZID=US/Pacific:20071211T140000
EXDATE;TZID=US/Pacific:20070911T140000
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20070918T153000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20071213T075959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:12
TRANSP:OPAQUE
UID:DB37CFAA-5997-4D15-9150-83B50043E7AD
DTSTART;TZID=US/Pacific:20070918T140000
DTSTAMP:20070903T165747Z
SUMMARY:Hot topic course\, Peter Teichner
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20070918T153000
RECURRENCE-ID;TZID=US/Pacific:20070918T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:13
TRANSP:OPAQUE
UID:DB37CFAA-5997-4D15-9150-83B50043E7AD
DTSTART;TZID=US/Pacific:20070925T140000
DTSTAMP:20070919T164502Z
SUMMARY:Hot topic course\, Andy Cotton-Clay
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20070925T153000
RECURRENCE-ID;TZID=US/Pacific:20070925T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:14
TRANSP:OPAQUE
UID:DB37CFAA-5997-4D15-9150-83B50043E7AD
DTSTART;TZID=US/Pacific:20071002T140000
DTSTAMP:20070919T164518Z
SUMMARY:Hot topic course\, Qin Li
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20071002T153000
RECURRENCE-ID;TZID=US/Pacific:20071002T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
DESCRIPTION:In 3 Evans\,\nPath integrals over a manifold
UID:2200FAB8-8331-4D0B-9A32-BE364B24866A
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070829T160000
DTSTAMP:20070825T022648Z
SUMMARY:Bruce Driver\, Miller Professor
CREATED:20081019T021415Z
DTEND;TZID=US/Pacific:20070829T170000
LOCATION:3 Evans
END:VEVENT
BEGIN:VEVENT
SEQUENCE:2
TRANSP:OPAQUE
UID:C67A231A-7A8E-403C-8B34-99FD1AECE7B0
DTSTART;TZID=US/Pacific:20080410T160000
DTSTAMP:20080322T135804Z
SUMMARY:Dennis Sullivan's Chern Lecture 3
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20080410T170000
LOCATION:Sibley Auditorium
END:VEVENT
BEGIN:VEVENT
SEQUENCE:4
DESCRIPTION:72 Evans\n\"Applications of grid diagrams to low dimensional
  topology\"\n\nKnot Floer homology\, developed by Ozsváth and Szabó and 
 independently by Rasmussen\, associates a sequence of graded abelian gro
 ups to a nullhomologous knot K in a 3-manifold Y. These groups encode an
  enormous amount of topological information. For example\, knot Floer ho
 mology detects the Seifert genus and provides a complete test for fibere
 dness. However\, until recently\, computation of these invariants was di
 fficult\, since their definition relied on counts of J-holomorphic curve
 s in a symplectic manifold. \n\nRecent work of Manolescu\, Ozsváth\, Sar
 kar\, Szabó\, Thurston\, and Wang (in various combinations) have placed 
 a subset of these invariants on a firmly combinatorial footing. In parti
 cular\, in the case where Y = S3\, the most robust of the knot Floer hom
 ology invariants can be combinatorially defined using so-called grid dia
 grams. I will discuss joint work with Baker and Hedden which generalizes
  the construction to provide a combinatorial description of knot Floer h
 omology for knots in lens spaces. This generalization has already\, in j
 oint work with Ruberman and Strle\, provided new information about the s
 mooth concordance group\, and we hope that it will have applications to 
 questions about which knots in S^2 admit lens space surgeries.
UID:EAA8143E-8DF2-4754-83F3-2E105A630411
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071015T160000
DTSTAMP:20071011T171119Z
SUMMARY:Eli Grigsby\, Columbia
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20071015T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:26
DTSTART;TZID=US/Pacific:20060829T140000
DTSTAMP:20061116T220333Z
SUMMARY:Student Seminar
EXDATE;TZID=US/Pacific:20061107T140000
DTEND;TZID=US/Pacific:20060829T153000
LOCATION:939 Evans
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20061208T075959Z
DESCRIPTION:939 Evans
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
CREATED:20081019T021422Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:19
DESCRIPTION:\"Classification of Oriented Groups\"\n\nI will explain how 
 to construct classifying objects for oriented group schemes of various t
 ypes. In the case of the multiplicative group\, this recovers (via a the
 orem of Snaith) complex K-theory. I will then describe the analogue of S
 naith's theorem in the case of elliptic curves\, and how this leads natu
 rally to the Hopkins-Miller theory of topological modular forms.
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061205T140000
DTSTAMP:20061202T010616Z
SUMMARY:Hot Topics Course: Jacob Lurie
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20061205T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20061205T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:26
DESCRIPTION:\"A geometric representation theory approach to Khovanov hom
 ology\"\n\nI will begin by giving the skein relation definitions of the 
 Jones polynomial and Khovanov homology.  Then I will explain how a repre
 sentation theorist thinks about the Jones polynomial.  This will lead us
  to the problem of categorification of tensor products of representation
 s of sl(2).  I will explain a categorification (joint with Sabin Cautis)
  using the derived categories of coherent sheaves on certain varieties a
 rising in the geometric Langlands program.  In particular\, this allows 
 us to construct Khovanov homology using algebraic geometry.
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061128T140000
DTSTAMP:20061126T234626Z
SUMMARY:Joel Kamnitzer
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20061128T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20061128T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:25
DESCRIPTION:\"From cohomology theories to brave new rings\"\n\nThis is a
  survey on various notions of spectra in algebraic topology. We'll start
  with their origin and end with some modern developments in the theory. 
 These will allow simple algebraic definitions of (commutative) ring spec
 tra which previously needed infinitely many homotopies.
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061114T140000
DTSTAMP:20061113T051333Z
SUMMARY:Peter Teichner
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20061114T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20061114T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:18
DESCRIPTION:Infinity categories
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060926T140000
DTSTAMP:20060924T224326Z
SUMMARY:Peter Teichner and Dave Spivak
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20060926T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20060926T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:13
DESCRIPTION:\"An introduction to Lefschetz fibrations as examples of smo
 oth 4-manifolds\"\n\nTopics such as  the K3 (Kummer) surface\, vanishing
  cycles\, Dehn twists\, singular fibers will be discussed with the aim o
 f describing smooth 4-manifolds.  Perhaps we'll get to broken\, achiral\
 , Lefschetz fibrations\, but probably not in any detail.
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060905T140000
DTSTAMP:20060901T183545Z
SUMMARY:Rob Kirby\, UCB
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20060905T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20060905T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:26
DESCRIPTION:\"Eta-invariants and determinant lines\"\n\nThis is a survey
  on some basic analysis and topology related to localizing the index of 
 Dirac operators.
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061121T140000
DTSTAMP:20061118T015549Z
SUMMARY:Arturo Prat-Waldron
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20061121T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20061121T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:23
DESCRIPTION:\"Introduction to geometric Langlands\"\n\nI will give an in
 troduction to the geometric Langlands program which concerns the topolog
 y of the moduli space of vector bundles on curves.  We will start with t
 he number theoretic motivations\, then we will see how the moduli space 
 of bundles enters the picture\, and then we will formulate the geometric
  Langlands correspondence.  Along the way\, we will discuss Langlands du
 al group and the geometric Satake correspondence.  All this is in prepar
 ation for Witten's lectures in two weeks.
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061031T140000
DTSTAMP:20061027T181112Z
SUMMARY:Joel Kamnitzer
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20061031T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20061031T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:26
DESCRIPTION:\"Three-manifold positivity\"\n\nGluing two manifolds along 
 a common boundary is a fundamental operation of topology. In the spirit 
 of physics we may consider “superpositions”\, i.e. complex linear combin
 ations\, of n manifolds bounding a fixed n-1 manifold S. Two such superp
 ositions  may be glued along S to yield a superposition of closed n-mani
 folds. It is known that in dimensions n>3 these pairings can have null v
 ectors v!=0 yet <v\,v>=0. Joint work with Calegari and Walker shows that
  when n=3 these pairings are positive (lack null vectors). The proof is 
 fun because it uses nearly everything we know about three manifolds. In 
 historical order: loop theorem/Dehn’s lemma\, prime decomposition\,  JSJ
  decomposition\, Geometrization of Haken manifolds\, residual finiteness
  of 3-manifold groups\, the unitarity of finite group TQFTs\, and crutia
 l Perelman lemmas on Ricci flow/surgery (after Agol et.al). The original
  motivation for asking about “positivity” comes from the study of two di
 mensional electron gasses.\n 
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061011T160000
DTSTAMP:20061004T180435Z
SUMMARY:Mike Freedman\, Project Q at UCSB/Microsoft
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20061011T173000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20061010T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:16
DESCRIPTION:\"Constructing exotic smooth structures on real 4-space\, R^
 4\, Part 2.\"\n\nWe use the example of E(1) from last lecture and show h
 ow Freedman's work allows us to topologically embed S^2 x S^2 minus a po
 int into E(1)\, but not smoothly\, and how this leads to an exotic R^4.
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060919T140000
DTSTAMP:20060915T012838Z
SUMMARY:Rob Kirby
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20060919T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20060919T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:16
DESCRIPTION:\"Constructing exotic smooth structures on real 4-space\, R^
 4\"\n\nWe use the example of E(1) from last lecture and show how Freedma
 n's work allows us to topologically embed S^2 x S^2 minus a point into E
 (1)\, but not smoothly\, and how this leads to an exotic R^4.
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060912T140000
DTSTAMP:20060907T051243Z
SUMMARY:Rob Kirby
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20060912T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20060912T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:19
DESCRIPTION:\"Local Khovanov Homology\"\n\nI will outline Bar-Natan's co
 bordism-theoretic version of Khovanov homology.  His approach has severa
 l advantages: more pretty pictures\, a clean algebraic framework\, and (
 best of all) complex-simplification algorithms which automate proofs of 
 Reidemeister invariance and do actual calculations.  This talk should be
  interesting both for those who have seen Khovanov homology before and f
 or those who haven't.
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061017T140000
DTSTAMP:20061011T045033Z
SUMMARY:Ari Nieh
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20061017T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20061017T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:18
DESCRIPTION:\"Classification of topological 4-manifolds\"\n\nThis will b
 e a survey of some known classification results regarding topological 4-
 manifolds\, including methods and open problems. 
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060829T140000
DTSTAMP:20060818T012628Z
SUMMARY:Peter Teichner\, UCB
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20060829T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20060829T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:20
DESCRIPTION:\"Skein relations\, seamed cobordisms\, and computations in 
 Khovanov homology\"\n\nWe continue last week's talk with a demonstration
  of Bar-Natan's local Khovanov theory in action.  Then\, I will discuss 
 new joint work with Scott Morrison on a similar theory for Khovanov's sl
 (3) knot homology.  If time allows\, we will also talk about decategorif
 ying these categorifying invariants\, which is not as counterproductive 
 as it sounds.
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061024T140000
DTSTAMP:20061023T064551Z
SUMMARY:Ari Nieh
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20061024T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20061024T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:21
DESCRIPTION:\"Quasi-Smooth Derived Manifolds\"\n\nWe use Lurie's theory 
 of derived geometry to formulate a category of \n(quasi-smooth) Derived 
 Manifolds.  This category contains the category of  smooth manifolds\, b
 ut is also closed under arbitrary (non-transverse) intersections.  \nMor
 e generally\, the solution to any smooth equation on a manifold is a \nd
 erived manifold\, even though its underlying set may be very singular.\n
 \nDespite this generality\, we prove that every derived manifold has a \
 nfundamental class.  On the way to obtaining the fundamental class\, we 
 will prove a Whitney imbedding theorem and a Thom-Pontrjagin theorem for
  derived manifolds.\n
UID:50D54C7E-E3A1-4658-BDEF-6AA0D20881D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061003T140000
DTSTAMP:20061015T052047Z
SUMMARY:Dave Spivak
CREATED:20081019T021422Z
DTEND;TZID=US/Pacific:20061003T153000
LOCATION:939 Evans
RECURRENCE-ID;TZID=US/Pacific:20061003T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:4
TRANSP:OPAQUE
UID:AF99ECB9-90A4-4BA7-A08E-05ECE96695D2
DTSTART;TZID=US/Pacific:20071010T170000
DTSTAMP:20071008T220232Z
SUMMARY:Yan Soibelman
CREATED:20081019T021428Z
DTEND;TZID=US/Pacific:20071010T180000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
DESCRIPTION:105 North Gate\, Bowen Lecture 2:\nTopological phases of mat
 ter in 2+1 dimensions
UID:51503308-982A-48F1-B477-4BC0B474A202
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071010T160000
DTSTAMP:20071008T220654Z
SUMMARY:Mike Freedman\, Project Q
CREATED:20081019T021423Z
DTEND;TZID=US/Pacific:20071010T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:5
DESCRIPTION:7 Evans
UID:6FEC0DB3-4C34-4DDF-B805-075B609B0635
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071130T170000
DTSTAMP:20071122T212513Z
SUMMARY:Mike Freedman
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20071130T180000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:12
TRANSP:OPAQUE
UID:FF48F813-F738-4B82-804C-693F89224C66
DTSTART;TZID=US/Pacific:20070828T140000
DTSTAMP:20070827T012607Z
SUMMARY:Hot topic seminar
EXDATE;TZID=US/Pacific:20070911T140000
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20070828T153000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20070918T065959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:11
TRANSP:OPAQUE
UID:FF48F813-F738-4B82-804C-693F89224C66
DTSTART;TZID=US/Pacific:20070828T140000
DTSTAMP:20070828T163443Z
SUMMARY:Hot topic course\, Peter Teichner
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20070828T153000
RECURRENCE-ID;TZID=US/Pacific:20070828T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:12
TRANSP:OPAQUE
UID:FF48F813-F738-4B82-804C-693F89224C66
DTSTART;TZID=US/Pacific:20070904T140000
DTSTAMP:20070828T163500Z
SUMMARY:Hot topic course\, Fei Han
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20070904T153000
RECURRENCE-ID;TZID=US/Pacific:20070904T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:60 Evans\nOuter Spaces
UID:B2263608-29DA-47C4-AAD9-9DDE60E77752
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070910T160000
DTSTAMP:20070909T184516Z
SUMMARY:Karen Vogtmann\, Cornell University
CREATED:20081019T021428Z
DTEND;TZID=US/Pacific:20070910T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:5
TRANSP:OPAQUE
UID:56A423C2-8515-48E9-AA31-55CDE261CABF
DTSTART;TZID=US/Pacific:20080408T160000
DTSTAMP:20080322T135723Z
SUMMARY:Dennis Sullivan's Chern Lecture 1
CREATED:20081019T021423Z
DTEND;TZID=US/Pacific:20080408T170000
LOCATION:Sibley Auditorium
END:VEVENT
BEGIN:VEVENT
SEQUENCE:17
DTSTART;TZID=US/Pacific:20060907T140000
DTSTAMP:20060916T002203Z
SUMMARY:Hot Topic
EXDATE;TZID=US/Pacific:20060928T140000
DTEND;TZID=US/Pacific:20060907T153000
LOCATION:2 Evans
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20061005T065959Z
DESCRIPTION:2 Evans
UID:C9F45531-C026-4280-ABFA-1738FE5CA3D6
TRANSP:OPAQUE
CREATED:20081019T021432Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:15
DESCRIPTION:We'll finish the motivation for derived schemes from ellipti
 c cohomology and present the topics of the various talks throughout the 
 semester.
UID:C9F45531-C026-4280-ABFA-1738FE5CA3D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060907T140000
DTSTAMP:20060916T002638Z
SUMMARY:Hot Topic Course: Peter Teichner
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20060907T153000
LOCATION:2 Evans
RECURRENCE-ID;TZID=US/Pacific:20060907T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:16
DESCRIPTION:2 Evans
UID:C9F45531-C026-4280-ABFA-1738FE5CA3D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060914T140000
DTSTAMP:20060916T002646Z
SUMMARY:Hot Topic Course: Matthias Goerner
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20060914T153000
LOCATION:2 Evans
RECURRENCE-ID;TZID=US/Pacific:20060914T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:21
DESCRIPTION:71 Evans
UID:C9F45531-C026-4280-ABFA-1738FE5CA3D6
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20060921T140000
DTSTAMP:20060916T003219Z
SUMMARY:Hot Topic Course: Dave Spivak
CREATED:20081019T021432Z
DTEND;TZID=US/Pacific:20060921T153000
LOCATION:71 Evans
RECURRENCE-ID;TZID=US/Pacific:20060921T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
TRANSP:OPAQUE
UID:50FA5945-C1F1-43FB-A89C-C7E916347E40
DTSTART;TZID=US/Pacific:20080206T173000
DTSTAMP:20080208T071036Z
SUMMARY:Topology Dinner
EXDATE;TZID=US/Pacific:20080326T173000
CREATED:20081019T021423Z
DTEND;TZID=US/Pacific:20080206T183000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20080507T065959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
TRANSP:OPAQUE
UID:50FA5945-C1F1-43FB-A89C-C7E916347E40
DTSTART;TZID=US/Pacific:20080409T183000
DTSTAMP:20080322T135818Z
SUMMARY:Topology Dinner
CREATED:20081019T021423Z
DTEND;TZID=US/Pacific:20080409T193000
RECURRENCE-ID;TZID=US/Pacific:20080409T173000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
DESCRIPTION:Sibley Auditorium\, Bowen Lecture 3:\nPositivity of Three Ma
 nifold Pairings
UID:A8BD93FC-67F4-40D5-9149-0332586B5B9E
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071011T160000
DTSTAMP:20071008T220701Z
SUMMARY:Mike Freedman\, Project Q
CREATED:20081019T021428Z
DTEND;TZID=US/Pacific:20071011T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:5
DESCRIPTION:3 Evans\, \nLens space surgeries and L-space homology sphere
 s
UID:9DC2CC10-0748-4EC1-93B5-2519951A1DF0
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070905T160000
DTSTAMP:20070825T023309Z
SUMMARY:Jake Rasmussen
CREATED:20081019T021428Z
DTEND;TZID=US/Pacific:20070905T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:6
DESCRIPTION:2:40	Eric Babson (UC Davis)\,  \"Homotopy theory for graphs\
 "\n\n4:15	Ciprian Manolescu (Columbia)\, \"A combinatorial description o
 f knot Floer homology\"
UID:DC9D6C02-2D54-494A-8551-EC25D1A2F635
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061107T140000
DTSTAMP:20061104T213629Z
SUMMARY:BATS at Stanford
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20061107T200000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:18
DESCRIPTION:71 Evans
UID:5BFCB045-8765-4F26-AA0B-764B033733C8
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061005T140000
DTSTAMP:20060916T002422Z
SUMMARY:Hot Topic
CREATED:20081019T021424Z
DTEND;TZID=US/Pacific:20061005T153000
LOCATION:2 Evans
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20061012T065959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:19
DESCRIPTION:71 Evans
UID:5BFCB045-8765-4F26-AA0B-764B033733C8
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20061005T140000
DTSTAMP:20060916T002716Z
SUMMARY:Hot Topic Course: Valentin Tonita
CREATED:20081019T021424Z
DTEND;TZID=US/Pacific:20061005T153000
LOCATION:71 Evans
RECURRENCE-ID;TZID=US/Pacific:20061005T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:3
TRANSP:OPAQUE
UID:3794C2D0-A768-4E96-B927-8F0015E684F5
DTSTART;TZID=US/Pacific:20080409T170000
DTSTAMP:20080322T135750Z
SUMMARY:Dennis Sullivan's Chern Lecture 2
CREATED:20081019T021420Z
DTEND;TZID=US/Pacific:20080409T180000
LOCATION:Sibley Auditorium
END:VEVENT
BEGIN:VEVENT
SEQUENCE:5
DESCRIPTION:3 Evans\n\"Open-closed conformal field theory\"\n\nOpen-clos
 ed conformal field theory describes perturbative\nopen-closed string the
 ory and some critical phenomena in condensed\nmatter physics. It provide
 s a tool to study the still mysterious\nobject called \"D-brane\".\nI wi
 ll outline a mathematical study of open-closed\nconformal field theory b
 ased on the theory of vertex operator algebra.\nIn particular\, I will g
 ive a tensor-categorical formulation of\nopen-closed conformal field the
 ory with boundary condition preserving\na rational vertex operator algeb
 ra.\nI will also briefly discuss what D-branes are in this framework.\nT
 his talk will be accessible to\nthose who know nothing about conformal f
 ield theory.
UID:ED5DB788-5C6C-44D3-9D51-C1FE1A411C75
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071003T160000
DTSTAMP:20071008T180005Z
SUMMARY:Liang Kong\, MPI Bonn
CREATED:20081019T021434Z
DTEND;TZID=US/Pacific:20071003T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:20
TRANSP:OPAQUE
UID:B6F79677-74E1-4599-B84B-6014981AF68D
DTSTART;TZID=US/Pacific:20070919T160000
DTSTAMP:20071117T184158Z
SUMMARY:Topology Seminar
EXDATE;TZID=US/Pacific:20071121T160000
EXDATE;TZID=US/Pacific:20071212T160000
EXDATE;TZID=US/Pacific:20071003T160000
EXDATE;TZID=US/Pacific:20071010T160000
CREATED:20081019T021431Z
DTEND;TZID=US/Pacific:20070919T170000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20071213T075959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:20
DESCRIPTION:939 Evans\nOuter space and the cohomology of Out(Fn)\n\nI wi
 ll review the definition of Outer space\, then show some ways it is used
  to study the cohomology of the group of outer automorphisms of a free g
 roup. In particular\, I will discuss the relationship with Kontsevich's 
 graph homology and Galatius' graph spectrum.
UID:B6F79677-74E1-4599-B84B-6014981AF68D
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071024T160000
DTSTAMP:20071117T184157Z
SUMMARY:Karen Vogtmann
CREATED:20081019T021431Z
DTEND;TZID=US/Pacific:20071024T170000
RECURRENCE-ID;TZID=US/Pacific:20071024T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:19
DESCRIPTION:3 Evans\n\"Exotic 4-manifolds with small Euler characteristi
 cs\"\n\nIt is known that many simply connected\, smooth topological 4-ma
 nifolds admit infinitely many smooth structures. The smaller the Euler c
 haracteristic\, the harder it is to construct exotic smooth structure.\n
 \nIn this talk we present examples of symplectic 4-manifolds with same\n
 integral cohomology as S^2 x S^2. We also discuss the generalization of\
 nthese examples to #_{2n-1}(S^2 xS^2) for n > 1. As an application of th
 ese symplectic building blocks\, we construct exotic smooth structure on
  small 4-manifolds such as CP^2#k(-CP^2) for k = 2\, 3\, 4\, 5 and  3CP^
 2#l(-CP^2) for l= 4\, 5\, 6\, 7. We will also discuss an interesting app
 lications to the geography of minimal symplectic 4-manifolds.\n
UID:B6F79677-74E1-4599-B84B-6014981AF68D
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071017T160000
DTSTAMP:20071117T184158Z
SUMMARY:Anar Akhmedov\, Georgia Tech
CREATED:20081019T021431Z
DTEND;TZID=US/Pacific:20071017T170000
RECURRENCE-ID;TZID=US/Pacific:20071017T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:16
DESCRIPTION:3 Evans\n\"Non-slice iterated Bing doubles\"\nWe introduce r
 ecently discovered new techniques to detect\nnon-slice iterated Bing dou
 bles.  In particular\, we apply\nHirzebruch-type invariants living in L-
 groups over number fields to\nextract information from towers of iterate
 d p-covers.
UID:B6F79677-74E1-4599-B84B-6014981AF68D
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071114T160000
DTSTAMP:20071117T184158Z
SUMMARY:Jae Choon Cha\, Pohang University of Science and Technology
CREATED:20081019T021431Z
DTEND;TZID=US/Pacific:20071114T170000
RECURRENCE-ID;TZID=US/Pacific:20071114T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:20
DESCRIPTION:3 Evans\n\" The slice-ribbon conjecture for certain pretzel 
 knots\"\n\nI will discuss various cobordism groups naturally arising \ni
 n low dimensional topology. Specifically\, I will discuss the integral \
 nand rational cobordism group of homology 3-spheres and the smooth \ncon
 cordance group of knots in the 3-sphere. There are several \nhomomorphis
 ms relating these groups and it is likely that a better\nunderstanding o
 f one will lead to an improved understanding of \nthe others. \n\nIn rec
 ent work\, joint with Josh Greene\, we made progress\nallowing for a bet
 ter understanding of the subgroup of the concordance group \ngenerated b
 y 3-stranded pretzel knots. Specifically\, we are able \nto sort out whi
 ch among these knots are slice and which ribbon\, \nleading to a positiv
 e solution of the slice-ribbon conjecture for 3-stranded \npretzel knots
 . Moreover\, we are able to completely classify all finite order knots \
 namong 3-stranded pretzel knots. \n\nUtilizing the above mentioned homom
 orphisms between the various cobordism groups\, we are able to obtain pa
 rallel results pertaining to Seifert fibered spaces (fibering over the 2
 -sphere) with 3 singular fibers of integral multiplicities. \n
UID:B6F79677-74E1-4599-B84B-6014981AF68D
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071128T160000
DTSTAMP:20071122T202153Z
SUMMARY:Stanislav Jakuba\, UN Reno
CREATED:20081019T021431Z
DTEND;TZID=US/Pacific:20071128T170000
LOCATION:3 Evans
RECURRENCE-ID;TZID=US/Pacific:20071128T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:18
TRANSP:OPAQUE
UID:B6F79677-74E1-4599-B84B-6014981AF68D
DTSTART;TZID=US/Pacific:20071107T160000
DTSTAMP:20071117T184159Z
SUMMARY:Jongil Park
CREATED:20081019T021431Z
DTEND;TZID=US/Pacific:20071107T170000
RECURRENCE-ID;TZID=US/Pacific:20071107T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:22
DESCRIPTION:3 Evans\n\"Definite 4-manifolds bounded by Dehn surgeries\"\
 nDonaldson's celebrated Theorem A states that a smooth definite closed 4
 -manifold has a standard diagonal intersection form.  There have been va
 rious generalizations of this to manifolds with specified boundary.  For
  example the Poincare homology sphere\, oriented as +1 surgery on the ri
 ght-handed trefoil\, does not bound any negative-definite manifold.  For
  a fixed knot K\, one can ask which surgeries on K bound negative-defini
 te manifolds. I will explain how this gives rise to an integer-valued sm
 ooth concordance invariant of knots.  I will discuss this invariant and 
 show how to compute it for torus knots.  Joint work with Saso Strle. \n
UID:B6F79677-74E1-4599-B84B-6014981AF68D
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071205T160000
DTSTAMP:20071130T165938Z
SUMMARY:Brendan Owens\, 	Louisiana State University
CREATED:20081019T021431Z
DTEND;TZID=US/Pacific:20071205T170000
RECURRENCE-ID;TZID=US/Pacific:20071205T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:11
DESCRIPTION:3 Evans:\n\"The dimension of the Torelli group\". \n\nAbstra
 ct: We prove that the cohomological dimension of the Torelli group for a
  closed connected orientable surface of genus g at least 2 is equal to 3
 g-5. This is joint work with Kai-Uwe Bux and Dan Margalit and answers a 
 question of Mess\, who proved the lower bound and settled the case of g=
 2. We also find the cohomological dimension of the Johnson kernel (the s
 ubgroup of the Torelli group generated by Dehn twists about separating c
 urves) to be 2g-3. For g at least 2\, we prove that the top dimensional 
 homology of the Torelli group is infinitely generated. Finally\, we give
  a new proof of the theorem of Mess that gives a precise description of 
 the Torelli group in genus 2. The main tool is a new contractible comple
 x\, called the \"complex of cycles\"\, on which the Torelli group acts.
UID:B6F79677-74E1-4599-B84B-6014981AF68D
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070926T160000
DTSTAMP:20071117T184158Z
SUMMARY:Mladen Bestvina\, Univ. of Utah
CREATED:20081019T021431Z
DTEND;TZID=US/Pacific:20070926T170000
RECURRENCE-ID;TZID=US/Pacific:20070926T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
DESCRIPTION:3 Evans\n\"Intersection forms\, fundamental groups\, and smo
 oth 4-manifolds\"\n\nAny finitely presented group $G$ can be realized as
  the fundamental group of a closed\, smooth 4-manifold $M$. What can be 
 said about the $Z[G]$-valued intersection form on $ \\pi_2(M)$ ? If the 
 module $\\pi_2(M)$ is a free $\\pi_1(M)$-module\, as is the case when $\
 \pi_1(M) = Z$\, then one can ask if the intersection form must be induce
 d by tensor product from an ordinary symmetric bliinear form over $Z$.  
 In this talk I will present some recent work on this question with Stefa
 n Friedl\, Paul Melvin and Peter Teichner. If time permits\, I will also
  discuss the homeomorphism classification of 4-manifolds with more gener
 al fundamental groups such as the solvable Baumslag-Solitar groups (join
 t work with Matthias Kreck and Peter Teichner).
UID:B6F79677-74E1-4599-B84B-6014981AF68D
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071031T160000
DTSTAMP:20071117T184159Z
SUMMARY:Ian Hambleton\, McMaster University
CREATED:20081019T021431Z
DTEND;TZID=US/Pacific:20071031T170000
RECURRENCE-ID;TZID=US/Pacific:20071031T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:12
DESCRIPTION:3 Evans\nTitle: Knot diagram invariants\nAbstract: I'll disc
 uss recent work with Tahl Nowik that looks at the\nspace of diagrams of 
 a knot and invariants that give information on\nhow many Reidemeister mo
 ves are needed to go from one diagram\nof a knot to another.
UID:B6F79677-74E1-4599-B84B-6014981AF68D
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070919T160000
DTSTAMP:20071117T184158Z
SUMMARY:Joel Hass\, UC Davis
CREATED:20081019T021431Z
DTEND;TZID=US/Pacific:20070919T170000
RECURRENCE-ID;TZID=US/Pacific:20070919T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:7
TRANSP:OPAQUE
UID:67F73991-9AD7-4FC1-B70C-AA5B8139FF28
DTSTART;TZID=US/Pacific:20080902T153000
DTSTAMP:20080826T230018Z
SUMMARY:Smooth Cohomology
EXDATE;TZID=US/Pacific:20081111T153000
EXDATE;TZID=US/Pacific:20080909T153000
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080902T170000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20081211T075959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:8
TRANSP:OPAQUE
UID:67F73991-9AD7-4FC1-B70C-AA5B8139FF28
DTSTART;TZID=US/Pacific:20080902T153000
DTSTAMP:20080831T210817Z
SUMMARY:Smooth Cohomology\, Peter Teichner
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20080902T170000
RECURRENCE-ID;TZID=US/Pacific:20080902T153000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:22
TRANSP:OPAQUE
UID:2733C4C2-F88A-4112-8314-230F6255615A
DTSTART;TZID=US/Pacific:20070919T140000
DTSTAMP:20071117T184158Z
SUMMARY:Topology Student Seminar
EXDATE;TZID=US/Pacific:20071212T140000
EXDATE;TZID=US/Pacific:20071010T140000
EXDATE;TZID=US/Pacific:20071121T140000
EXDATE;TZID=US/Pacific:20071107T140000
CREATED:20081019T021416Z
DTEND;TZID=US/Pacific:20070919T150000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20071213T075959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:21
DESCRIPTION:939 Evans\n\"TQFT and Hitchin's Connection\"\nIn 1990 Hitchi
 n described a projectively flat connection in a certain bundle over Teic
 hmüller space via geometric quantization of the moduli space of\n flat S
 U(m)-connections on a surface. The space of covariantly constant\n secti
 ons of this connection is the vector space associated to the\nsurface in
  TQFT.\n In this talk we give a straight-forward construction of Hitchin
 's connection for any compact symplectic manifold\, under some assumptio
 ns\, not just applicable to the moduli space. This construction is geome
 tric and uses the language of global differential geometry and geometric
  quantization. In\nparticular we give an explicit solution due to Anders
 en to the original equations formulated by Hitchin. If time permits\, we
  will discuss a further generalization of this solution under less assum
 ptions. This is recent work joint with Andersen and Gammelgaard.
UID:2733C4C2-F88A-4112-8314-230F6255615A
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071114T140000
DTSTAMP:20071117T184158Z
SUMMARY:Magnus Lauridsen\, University of Aarhus
CREATED:20081019T021416Z
DTEND;TZID=US/Pacific:20071114T150000
RECURRENCE-ID;TZID=US/Pacific:20071114T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:16
DESCRIPTION:939 Evans\nBicategories\n\nWhy are categories important in M
 athematics? Is it because saying X is a category tells us a lot about X?
  No. In fact categories are so general that saying X is a category tells
  us almost nothing. Nevertheless\, categories are useful because they pr
 ovide a common conceptual framework applicable to vastly different parts
  of mathematics. Many ideas make more sense in the language of categorie
 s\, e.g. many of the special properties of homology can be succinctly ex
 plained by saying it is a functor. Bicategories\,  introduced in 1967 by
  Jean Benabou\, provide a similar conceptual framework. In this introduc
 tory talk we will define bicategories and functors between them. No fami
 liarity with bicategories is assumed and several examples will be given.
  We will also show how bicategories provide a succinct language for Mori
 ta's theorems.\n\nThis is the second talk of the Extended TQFT series\, 
 and one of the examples we will explain is the bordism bicategory. If ti
 me permits we will also introduce the definition of a monoidal bicategor
 y and give some examples.
UID:2733C4C2-F88A-4112-8314-230F6255615A
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071024T140000
DTSTAMP:20071117T184158Z
SUMMARY:Chris Schommer-Pries\, UCB
CREATED:20081019T021416Z
DTEND;TZID=US/Pacific:20071024T150000
RECURRENCE-ID;TZID=US/Pacific:20071024T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:9
DESCRIPTION:939 Evans\nTitle: \"My experience in a start-up\"\nAbstract:
  \"This talk won't be about math\, but about the experiences I\nmade in 
 a Silicon Valley start-up company: though mostly I was focused\non progr
 amming and learning about web technologies\, I also had a\nlittle bit of
  insight into how to get funding\, hire people etc.\"
UID:2733C4C2-F88A-4112-8314-230F6255615A
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070919T140000
DTSTAMP:20071117T184159Z
SUMMARY:Matthias Görner
CREATED:20081019T021416Z
DTEND;TZID=US/Pacific:20070919T150000
RECURRENCE-ID;TZID=US/Pacific:20070919T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:14
DESCRIPTION:939 Evans\nThis will be an introduction to the 4pm seminar.
UID:2733C4C2-F88A-4112-8314-230F6255615A
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071003T140000
DTSTAMP:20071117T184159Z
SUMMARY:Liang Kong\, MPI Bonn
CREATED:20081019T021416Z
DTEND;TZID=US/Pacific:20071003T150000
RECURRENCE-ID;TZID=US/Pacific:20071003T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:15
DESCRIPTION:939 Evans\n\"Conjugations on 6-manifolds\"\n\nBy perturbing 
 the metric\, one can always make the isometry group of a compact Riemann
 ian manifold trivial. But maybe the reason for asymmetry is often alread
 y the topology?\nOne can show that for some 6-manifolds\, the only possi
 ble action of a finite group could be a \"conjugation\".\nConjugation sp
 aces are spaces with involution. Their fixed point set has cohomology is
 omorphic to the cohomology of the space itself\, with the little differe
 nce that all degrees are divided by two.\nIn the talk I will explain con
 jugation spaces and construct conjugations on 6-manifolds.\n
UID:2733C4C2-F88A-4112-8314-230F6255615A
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071017T140000
DTSTAMP:20071117T184200Z
SUMMARY:Martin Olbermann\, UCB
CREATED:20081019T021416Z
DTEND;TZID=US/Pacific:20071017T150000
RECURRENCE-ID;TZID=US/Pacific:20071017T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:23
DESCRIPTION:939 Evans\n\"A finite presentation for knotted trivalent gra
 ph diagrams\"\n\nKnotted trivalent graphs are embeddings into 3-space of
  graphs with three edges at every vertex\, and diagrams are obtained by 
 projecting them into 2-space.  We will provide an algorithm to show that
  these are finitely generated and will provide (but not fully justify) a
  finite list of relations with an eye towards improving our relations wi
 th the Kontsevich integral. 
UID:2733C4C2-F88A-4112-8314-230F6255615A
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071205T140000
DTSTAMP:20071204T023011Z
SUMMARY:Jana Comstock
CREATED:20081019T021416Z
DTEND;TZID=US/Pacific:20071205T150000
RECURRENCE-ID;TZID=US/Pacific:20071205T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:18
DESCRIPTION:939 Evans\n\"Symplectic Floer homology of surface symplectom
 orphisms\"\nSymplectic Floer homology (SFH) assigns to a symplectomorphi
 sm f a Z/2-graded chain complex generated by the fixed points of f with 
 differentials given by counting holomorphic cylinders in M_f x R\, where
  M_f is the mapping torus of f. The homology HF_*(f) is invariant under 
 certain deformations of f.\n\nThurston classified surface diffeomorphism
 s into periodic\, pseudo-Anosov\, and reducible mapping classes. SFH has
  previously been understood for periodic mapping classes and special cas
 es of the others. I'll discuss pseudo-Anosov maps and train tracks and w
 ill present new work showing how to compute SFH using train tracks for p
 seudo-Anosov and reducible maps in any mapping class.
UID:2733C4C2-F88A-4112-8314-230F6255615A
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071128T140000
DTSTAMP:20071126T051344Z
SUMMARY:Andy Cotton-Clay
CREATED:20081019T021416Z
DTEND;TZID=US/Pacific:20071128T150000
RECURRENCE-ID;TZID=US/Pacific:20071128T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:14
DESCRIPTION:939 Evans\nTitle: Two-Dimensional Topological Quantum Field 
 Theories\nAbstract:\nThis is the first in a series of talks whose ultima
 te goal is to explain some recent work classifying extended 2-D TQFTs\, 
 up to natural isomorphism. They are in bijection with semi-simple Froben
 ius algebras\, up to Morita equivalence. This talk will begin with the c
 lassical theorems that 1+1 TQFTs are the same as commutative Frobenius a
 lgebras and that another version of \"extended\" TQFTs\, the so called o
 pen-closed 1+1 TQFTs\, are the same as \"knowledgeable Frobenius algebra
 s\". These are both 1-categorical theorems. For us\, an extended 2-D TQF
 T is a (symmetric monoidal) functor from the cobordism 2-category of (ze
 ro-manifolds\, 1-manifolds\, 2-manifolds) to the 2-category of (algebras
 \, bimodules\, intertwiners). After reviewing the classical analogs we w
 ill sketch a proof of the above theorem\, the details of which will be d
 ivided into future talks.
UID:2733C4C2-F88A-4112-8314-230F6255615A
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20070926T140000
DTSTAMP:20071117T184158Z
SUMMARY:Chris Schommer-Pries
CREATED:20081019T021416Z
DTEND;TZID=US/Pacific:20070926T150000
RECURRENCE-ID;TZID=US/Pacific:20070926T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:18
DESCRIPTION:939 Evans\n\"Conjugations on 6-manifolds\"\n\nConjugation sp
 aces are spaces with involution and an algebra isomorphism from their co
 homology to the cohomology of its fixed point set which divides all degr
 ees by two.\nWe will recall the definition and properties of conjugation
  spaces and explain the construction of conjugations on 6-manifolds.
UID:2733C4C2-F88A-4112-8314-230F6255615A
TRANSP:OPAQUE
DTSTART;TZID=US/Pacific:20071031T140000
DTSTAMP:20071117T184159Z
SUMMARY:Martin Olbermann
CREATED:20081019T021416Z
DTEND;TZID=US/Pacific:20071031T150000
RECURRENCE-ID;TZID=US/Pacific:20071031T140000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:14
TRANSP:OPAQUE
UID:6BC667FE-4D6A-425B-BFA7-477D3F75F6FD
DTSTART;TZID=US/Pacific:20060829T160000
DTSTAMP:20061006T211426Z
SUMMARY:Math  Soccer
EXDATE;TZID=US/Pacific:20060905T160000
EXDATE;TZID=US/Pacific:20060829T160000
EXDATE;TZID=US/Pacific:20061003T160000
EXDATE;TZID=US/Pacific:20061107T160000
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20060829T180000
RRULE:FREQ=WEEKLY;INTERVAL=1;UNTIL=20061208T075959Z
END:VEVENT
BEGIN:VEVENT
SEQUENCE:13
TRANSP:OPAQUE
UID:6BC667FE-4D6A-425B-BFA7-477D3F75F6FD
DTSTART;TZID=US/Pacific:20061114T160000
DTSTAMP:20061029T175610Z
SUMMARY:Witten's Bowen Lecture 2
CREATED:20081019T021425Z
DTEND;TZID=US/Pacific:20061114T170000
RECURRENCE-ID;TZID=US/Pacific:20061114T160000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:1
TRANSP:OPAQUE
UID:22C1C405-F3FF-41A3-B7D7-358BAD4F944B
DTSTART;TZID=US/Pacific:20081203T160000
DTSTAMP:20081105T022148Z
SUMMARY:Kevin Walker
CREATED:20080922T201017Z
DTEND;TZID=US/Pacific:20081203T170000
END:VEVENT
BEGIN:VEVENT
SEQUENCE:1
TRANSP:OPAQUE
UID:C1C94CCA-A54E-43EA-84B5-8A1D1B647F29
DTSTART;TZID=US/Pacific:20081119T160000
DTSTAMP:20081105T022141Z
SUMMARY:Charles Livingston
CREATED:20080922T201017Z
DTEND;TZID=US/Pacific:20081119T170000
END:VEVENT
END:VCALENDAR