UofT Mathematics Logo

Department of Mathematics Seminars and Talks

 
Events at Fields login
Seminar

Symplectic

Talk Information
Title
Derived Lie groupoids and symplectic reduction

by Reyer Sjamaar (Cornell University)

Start date and time
15:10 on Monday February 16, 2026
Duration in minutes
50 (until 16:00 on Monday February 16, 2026)
Room
BA6183, Bahen Center, 40 St. George St.
Streaming link
Streaming password
External video link
Talk link
https://seminars.math.toronto.edu/pages/seminars?case=view_talk&talk_id=1771272600-1768340418-261
Abstract

This is joint work with Cueca, Dorsch, and Zhu. We propose a notion of derived Lie groupoid and show how singular symplectic reduction has a natural interpretation in this context. This is a smooth counterpart to an algebro-geometric result of Calaque, Pantev, Toen, and Vezzosi.

Speaker Information
Full Name
Reyer Sjamaar
Personal website
https://sites.google.com/view/reyersjamaar/home
Institution
Cornell University
Institution URL
Department of Mathematics, University of Toronto