海天学者系列报告

报告题目：Projective spectrum and group theory

报告人：Rongwei Yang（杨容伟）

报告时间：2017年7月10日（星期一） 上午 9:00-11:00

报告地点：创新园大厦A1101

校内联系人：杨义新  电话：84708351-8135

报告内容： For a tuple $A=(A_1,\ A_2,\ ...,\ A_n)$ of elements in a unital Banach algebra ${\mathcal B}$, its {\em projective joint spectrum} $P(A)$ is the collection of $z\in {\mathbb C}^n$ such that the multiparameter pencil $A(z)=z_1A_1+z_2A_2+\cdots +z_nA_n$ is not invertible. In this series of lectures we will look at geometric and topological properties of projective spectrum, and will also display many interesting examples. In particular, we will focus on its application to group theory.

报告人简介：Rongwei Yang is a Professor of Mathematics at State University of New York at Albany, USA. His research interests include: multi-variable operator theory, several complex variables, Hermitian bundles, Kahler geometry on Stein domains, Chern-Weil homomorphism, cyclic cohomology.

数学科学学院

2017年7月10号