Mathematics Colloquia and Seminars
Symmetric braiding on the derived category of character sheaves on GL(n)Algebraic Geometry
|Speaker:||Kostya Tolmachov, University of Toronto|
|Start time:||Wed, Feb 19 2020, 12:10PM|
In view of recent developments in knot homologies, it is sometimes desirable to be able to compute Schur functors in certain triangulated categories of adjoint-equivariant sheaves on GL_n. However, canonical braided structures in these categories are not symmetric, so aforementioned functors are not well-defined. I will report on a joint work with Roman Bezrukavnikov, where this deficiency is fixed for the derived category of character sheaves.