# Dixy Msapato (University of Leeds)

Date

Monday February 7, 20224:30 pm - 5:30 pm

Location

Online via Zoom## Algebra & Geometry Seminar

**Monday, February 7th, 2022**

**Time:** 4:30 p.m. **Place:** Online via Zoom (contact Kaveh Mousavand for Zoom link)

**Speaker:** Dixy Msapato (University of Leeds)

**Title:** Counting tau-exceptional sequences for Nakayama algebras.

**Abstract:** The notion of a tau-exceptional sequence was introduced by Buan and Marsh in 2018 as a generalisation of exceptional sequences over finite dimensional algebras. In this talk, I will introduce both this notion, and present counting results of tau-exceptional sequences over some classes of Nakayama algebras (and a general counting strategy). In some of these Nakayama algebra cases we will see obtain closed formulas counting other well-known combinatorial objects, and exceptional sequences over some path algebras of Dynkin quivers.

**Website details here: **https://mast.queensu.ca/~georep/