Speaker: Professor Jiang-Hua Lu (路江华)

              The University of Hong Kong

Place：  浙江大学(紫金港校区)数学高等研究院一楼报告厅

The First Time----

Title: Some remarks on friezes

Time: Nov.22, 2021 (Monday), 3:00pm-4:00pm

Abstract: Friezes were introduced by Coxeter in the 1970s as special arrays of positive integers satisfying certain internal relations, and they were recently cast in the framework of cluster algebras. In this talk I will discuss some geometric model of friezes. This is joint work with Antoine. St. Germain and Min Huang.

The Second Time----

Title: Cluster algebras of finite type and Bott-Samelson varieties

Time: Nov.25, 2021 (Thursday), 3:00pm-4:00pm

Abstract: In this talk we discuss how Bott-Samelson varieties can be used to study cluster algebras of finite type with principal coefficients at an acyclic seed. In particular, we construct all the cluster tori in the underlying cluster variety. This is joint work with Antoine St. Germain

Introduction to Professor Jiang-Hua Lu：

    路江华教授，本科毕业于北京大学，后在加州伯克利大学获数学博士学位。曾在美国麻省理工学院，亚利桑那大学，及普林斯顿高等研究院任教与访问。现任香港大学数学系教授。路江华教授的主要研究方向为和李群有关的泊松几何与辛几何。