报告题目：Properly proximal von Neumann Algebras

报告人：丁长缨（美国范德堡大学数学系）

报告时间：2022年10月14日21:00-22:00

报告地点：腾讯视频会议（线上）

会议ID：393 605 022       会议密码：221014

校内联系人：江永乐 副教授   联系电话：84708351-8033

报告摘要：Properly proximal groups were introduced recently by Boutonnet, Ioana, and Peterson, where they generalized several rigidity results to the setting of higher-rank groups. In this talk, I will how the notion of proper proximality fits in the setting of von Neumann algebras. I will also describe several applications, including that the group von Neumann algebra of a non-amenable inner-amenable group cannot embed into a free group factor, which solves a problem of Popa. This is joint work with Srivatsav Kunnawalkam Elayavalli and Jesse Peterson.

报告人简介：丁长缨, 美国范德堡大学博士生（导师：Jesse Peterson教授）。 主要研究方向包括算子代数, 算子空间和几何群论。