Upcoming Events
Topology, Algebraic Geometry, and Dynamics Seminar (TADS): Virtual classes of character stacks
May 13, 2022, 1:30 - 2:30 PM
Speaker: Marton Hablicsek, Leiden University
Title: Virtual classes of character stacks
Abstract: In this talk, I will explain how to construct a Topological Quantum Field Theory to compute virtual classes of character stacks in the Grothendieck ring of stacks. This construction extends the work of González-Prieto, Logares and Muñoz. I will also show a few features of the construction focusing on a couple of simple examples including the affine linear group of rank 1 and the semi-direct product of the multiplicative group G_m with the finite group of order 2.
The work is joint with Jesse Vogel and Ángel González-Prieto.
Time: Friday, May 13, 2022, 1:30pm – 2:30pm
Place: Exploratory Hall, room 4208
