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CATEGORIES:Algebra Seminar
SUMMARY:A central extension of the Hecke algebra at q = −1
- Ivan Marin\, Université de Picardie Jules Verne
DTSTART:20140716T100000Z
DTEND:20140716T110000Z
UID:TALK2657AT
URL:/talk/index/2657
DESCRIPTION:In a joint work with E. Wagner\, we introduced a c
entral extension of the Iwahori-Hecke algebra at _
q_ = −1\, attached to any Coxeter system (_W_\,_S_
). This extension also admits a uniform presentati
on as a quotient of the attached Artin–Tits group.
In type _A_\, we define a Markov trace on this al
gebra that provides a 'new' link invariant.
LOCATION:Watson Building\, Lecture Room A
CONTACT:David Craven
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