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SUMMARY:Deformations of link homologies - Paul Wedrich (Cambridge)
DTSTART:20150206T150000Z
DTEND:20150206T160000Z
UID:TALK57824@talks.cam.ac.uk
CONTACT:Joe Waldron
DESCRIPTION:I will start by explaining how deformations help to answer two
  important questions about the family of (colored) sl(N) link homology the
 ories: What relations exist between them? What geometric information about
  links do they contain? I will recall Bar-Natan and Morrison's version of 
 Lee's deformation of Khovanov homology and sketch how it generalizes to th
 e case of colored sl(N) link homology. Finally\, I will state a decomposit
 ion theorem for deformed colored sl(N) link homologies which leads to new 
 spectral sequences\nbetween various type A link homologies and concordance
  invariants in the spirit of Rasmussen's s-invariant. Joint work with Davi
 d Rose.
LOCATION:MR13
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