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Workshop on "Combinatorial and geometric aspects of Hyperplane Arrangements" May 24th through 26th

MAY WORKSHOP: An explicit Kontsevich integral for welded braids

speaker: Stefan Papadima (Romanian Academy of Sciences)

abstract: Drinfeld used associators to construct faithful representations of braid groups into complete algebras of chord diagrams, whose extension to the group ring induces a multiplicative isomorphism, at the associated graded level. We do the same, for welded braid groups and oriented chord diagrams. Our representations are defined over the rationals, by simple explicit formulae. This is joint work with Barbu Berceanu.

timetable:
Wed 26 May, 14:45 - 15:45, Aula Dini
documents:

Papadima Talk

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