Geometry and Physics Seminar: Sabin Cautis
- Date: 09/23/2013
- Time: 15:10
Lecturer(s):
Sabin Cautis- UBC
Location:
University of British Columbia
Topic:
Categorical Heisenberg actions on Hilbert schemes of points
Description:
We define actions of certain Heisenberg algebras on the Hilbert schemes of points on ALE spaces. This lifts constructions of Nakajima and Grojnowski from cohomology to K-theory and derived categories of coherent sheaves. This action can be used to define Lie algebra actions (using categorical vertex operators) and subsequently braid group actions and knot invariants.
Other Information:
Location: ESB 4127