Cluster algebras of finite mutation type and extended affine Weyl groups
组织者
演讲者
Pavel Tumarkin
时间
2025年09月29日 16:00 至 17:30
地点
Online
线上
Zoom 455 260 1552
(YMSC)
摘要
With (almost) every finite mutation class of quivers we can associate two groups: an extended affine Weyl group of type A or D, and a certain quotient of a Coxeter group which behaves nicely with respect to mutations. I will discuss a connection between these groups and a (conjectural) characterization of mutation-finite quivers in terms of positive semidefinite symmetric matrices. The talk is based on joint works (some still in progress) with Anna Felikson, John Lawson and Michael Shapiro.