报 告 人： Ziqing Xiang

工作单位:  University of Georgia

报告地点： 公司北研教室

报告时间： 6月21日15:00

报告摘要：

In this talk, I will discuss a theory of support varieties for

Iwahori-Hecke algebras which detects natural homological properties such

as the complexity of modules. The theory has a canonical description in

an affine space where computations are tractable. The ideas involve the

interplay with the computation of the cohomology ring due to Benson,

Erdmann and Mikaelian, the theory of vertices due to Dipper and Du, and

branching results for cohomology by Hemmer and Nakano. Calculations of

support varieties and vertices are presented for permutation, Young and

classes of Specht modules.

报告人简介:

Ziqing Xiang graduated from University of Georgia this May. He has many research interests, which mainly focus on Representation Theory, Combinatorics and Number Theory.