报告题目： Coarse geometry, Roe algebras and higher index problems

报告人：王勤 (华东师范大学)

报告时间：2020年12月11日（星期五）下午15：00-16：00

报告地点：腾讯视频会议（线上）

会议 ID：892 688 444    会议密码：201211

校内联系人：程国正

报告摘要：Coarse geometry is the study of metric spaces from a “large scale” point of view, so that two spaces that look the same from a great distance are actually equivalent. Typical examples of spaces are non-compact complete Riemannian manifolds, countable discrete groups, certain graphs and dynamical systems, etc.. This point of view is effective since it is often true that the relevant geometric properties of metric spaces are determined by their coarse structures. In this lecture, we will discuss some basic ideas and examples in coarse geometry, their applications to C^*-algebras and higher index problems, together with some connections to geometric group theory, expander graphs and Banach space geometry.

报告人简介： 王勤，华东师范大学数学系算子代数研究中心教授、博士生导师, 主要从事算子代数、粗几何、非交换几何等领域的研究，在非交换几何的重要问题“粗Baum-Connes猜想”、“粗Novikov猜想”等方面取得了若干重要成果，曾获全国百篇优秀论文奖，入选教育部新世纪优秀人才支持计划、上海市曙光学者、上海市浦江学者。