题目：Infinite quantum permutations

报告人：Christian Voigt（英国格拉斯哥大学）

时间：2022年9月21日（星期三），16：00-17:30

Zoom会议：会议号：882 8540 7533，会议密码：028422

会议链接： https://zoom.us/j/88285407533?pwd=NFlsWlZlb2F3c3VmMHBqOXVud1NpQT09

摘要：In this talk I will discuss an approach to study quantum symmetries of infinite sets and graphs. This leads to discrete quantum groups, in analogy to the quantum symmetry groups of Wang and Banica/Bichon. For finite sets and graphs, the resulting quantum groups can in fact be viewed as discretisations of the former (compact) quantum groups. I will discuss a number of examples, and highlight some intriguing open problems as well.

讲义 

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