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SUMMARY:Annular Khovanov-Lee theory of braid closures and braided surfaces
  - Eli Grigsby (Boston College)
DTSTART:20170119T143000Z
DTEND:20170119T153000Z
UID:TALK70021@talks.cam.ac.uk
CONTACT:INI IT
DESCRIPTION:By endowing the annular Khovanov-Lee complex with the structur
 e of a bifiltered complex\, we define a family of annular Rasmussen invari
 ants that gives information both about the positivity of braids viewed as 
 mapping classes and the complexity of braided surfaces bounded by their cl
 osures (j. work with T. Licata and S. Wehrli).
LOCATION:Seminar Room 1\, Newton Institute
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