Events by date

Sean Monahan, Department of Pure Mathematics, University of Waterloo

"An introduction to toric varieties"

Toric varieties are a special kind of variety equipped with a group action from an algebraic torus. These varieties are very nice to work with because they have a combinatorial interpretation involving polyhedral geometry. I will (very quickly) introduce toric varieties and focus on some concrete examples.

The seminar will meet on Zoom.
Meeting ID: 811 2094 8164
Passcode: 033003

Ping Zhong, University of Wyoming

The Brown measure was introduced by L.G. Brown in 1983. It is a generalized notion of spectral measure which applies to non-normal operators living in a suitable non-commutative probability framework -- the framework of a so-called W*-probability space. The purpose of this learning seminar is to provide an accessible entry point to the notion of Brown measure, with an eye towards becoming able to do calculations of Brown measures in examples which come from free probability.