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X-WR-CALNAME:Marko Stosic\, \"sl(N)-link homology using foams and the Ka
 pustin-Li formula\"
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CALSCALE:GREGORIAN
METHOD:PUBLISH
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TZID:US/Eastern
LAST-MODIFIED:20080108T182415Z
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DTSTART:20071104T060000
TZOFFSETTO:-0500
TZOFFSETFROM:+0000
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DTSTART:20080309T010000
TZOFFSETTO:-0400
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BEGIN:VEVENT
DURATION:PT1H
LOCATION:Math 507\, Columbia University
DTSTAMP:20080108T182412Z
UID:E25E4B09-3990-4AD9-A448-0308E04168DA
SEQUENCE:6
URL;VALUE=URI:http://math.columbia.edu/~lipshitz/SGGT/
DTSTART;TZID=US/Eastern:20080125T130000
SUMMARY:Marko Stosic\, \"sl(N)-link homology using foams and the Kapusti
 n-Li formula\"
DESCRIPTION:Abstract:\n\nIn joint work with M. Mackaay and P. Vaz [4]\, 
 we define an almost topological construction of a rational link homology
  categorifying the sl(N)-link invariant. This construction uses foams wh
 ich generalize the ones introduced by Khovanov in [1]. The evaluation of
  closed foams uses the Kapustin-Li formula\, adapted to the context of f
 oams by Khovanov and Rozansky [2]. We conjecture that our link homology 
 theory is equivalent to Khovanov and Rozansky's in [3].\nIn this talk I 
 will present the topological aspects of this theory and show how to use 
 the Kapustin-Li formula in order to evaluate the closed foams.\n\nRefere
 nces:\n\n[1] M. Khovanov\, sl(3) link homology\, Alg.Geom.Top. 4(2004)\,
  1045-1081.\n[2] M. Khovanov and L. Rozansky\, Topological Landau-Ginzbu
 rg models on a world-sheet foam\, hep-th/0404189.\n[3] M. Khovanov and L
 . Rozansky\, Matrix factorizations and link homology\, QA/0401268\n[4] M
 .Mackaay\, M. Stosic and P.Vaz\, sl(N)-link homology using foams and the
  Kapustin-Li formula\, arXiv:0708.2228\n
ORGANIZER;CN="Robert Lipshitz":mailto:lipshitz@math.stanford.edu
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