DateThursday September 21, 2023
4:00 pm - 5:00 pm
LocationJeffery Hall, Room 102
Thursday, September 21st, 2023
Time: 4:00 p.m. Place: Jeffery Hall, Room 102
Speaker: Sonja Ruzic
Title: Total positivity: A motivation for cluster algebras
Abstract: In this talk, we cover the concept of total positivity and total non-negativity of n x n matrices. We look at general square matrices, Grassmannians, and basic affine spaces. We do not define the cluster algebra yet. However, these examples include notions which will appear in the formal definition of a cluster algebra. This talk will aim to cover Chapter 1 of the notes and serve as motivation for the study of cluster algebras.