University of California, San Diego.
Academic year: 2022-2023.
Monday 3:00-4:00, 7321 AP&M
Questions? email Dan Rogalski at

Fall 2022

Date Speaker Topic
October 24, 2022 Dan Rogalski
  Artin Schelter regular algebras

  Abstract: What are the noncommutative rings that are most analogous to polynomial rings? One class of such rings are the regular algebras first defined by Artin and Schelter in 1987. Since then such algebras have been extensively studied. We give a survey of these interesting examples and their associated projective geometry.

November 7, 2022 Gil Goffer
  The space of closed subgroups

  Abstract: Given a topological group G, one considers the space of its closed subgroups, called the Chabauty space. I will talk about the structure and features of this space, and show how various algebraic and topological properties of a group are expressed there.

November 14, 2022 Alireza Salehi Golsefidy
  Random-walks in group extensions

  Abstract: Basics of random-walks in a finite group, super-approximation, and recent developments in this subject will be discussed. (More recent results are parts of my joint works with Srivatsa Srinivas.)

November 28, 2022 Hans Wenzl
  Tensor Categories

  Abstract: Tensor categories have played an important role in areas as diverse as topology, mathematical physics, operator algebras and representation theory. This is an introductory talk. I will mostly talk about classification of tensor categories with given tensor product rules and module categories for certain important examples.

Winter 2023

Date Speaker Topic
March 13, 2023 Cris Negron