### GEORGE MASON
UNIVERSITY

DEPARTMENT OF MATHEMATICAL
SCIENCES

COLLOQUIUM

FEBRUARY 21, 2020

**Speaker: **
Steven Rayan,
Centre for Quantum Topology and Its Applications (quanTA) / University of Saskatchewan

**Title: ***Hitchin systems in mathematics and beyond
*

**Abstract: **

The Hitchin system is a moduli space arising from the geometric study of the
Yang-Mills equations on Riemann surfaces. Over the past 30 years it has
become both a unifying structure and an important tool for probing many
questions at the interface of algebraic geometry, representation theory,
integrable systems, and combinatorics. I intend to survey a number of its
fascinating features and will conclude by speculating on new connections
between the Hitchin system and physics.

**Time:** Friday, February 21, 2020, 3:30-4:20 p.m.

**Place:** Exploratory Hall, room 4106

**Refreshments** will be served at 3:00 p.m.

Department of Mathematical Sciences

George Mason University

4400 University Drive, MS 3F2

Fairfax, VA 22030-4444

http://math.gmu.edu/

Tel. 703-993-1460, Fax. 703-993-1491