Algebraic description for cohomology of quiver varieties
Date:
Wednesday, May 31, 2017 13:45 - 15:45
Speaker:
Peng Shan (Université Paris-Sud)
Location:
Big Seminar room Ground floor / Office Bldg West (I21.EG.101)
Series:
Mathematics and CS Seminar
Host:
Tamas Hausel
Contact:
DE ANTONI Jessica
In the first part, I will review the action of current algebras on cohomology of quiver varieties and an algebraic counterpart of this action on the center of quiver Hecke algebras, and state an isomorphism between the cohomology and the center (based on a joint work with Varagnolo-Vasserot). In the second part, I will explain a variation of this isomorphism and a relationship with the Coulomb branches recently introduced by Braverman-Finkelberg-Nakajima.