欢迎光临!
您现在所在的位置:首页 >> 通知公告 & 学术信息
学术信息
SEMINARS
Amenablity and paradoxical decompositions
时间  Datetime
2017-09-12 14:00 — 16:30 
地点  Venue
Large Conference Room
报告人  Speaker
Tullio Ceccherini-Silberstein
单位  Affiliation
Universita` del Sannio
邀请人  Host
Yaokun Wu
报告摘要  Abstract

We discuss several aspects of amenability and non-amenability for groups, graphs, and metric spaces. The central result is Tarski alternative theorem (amenability is equivalent to absence of paradoxical decompositions). Bipartite graphs and the harem version of the Rado-Hall marriage theorem (a central result for the proof of the alternative theorem) will also be discussed.

 

http://math.sjtu.edu.cn/conference/Bannai/2017/talk.php?20170912A