Geometric property (T)

被引：0
作者：
Rufus Willett
Guoliang Yu
机构：
[1] University of Hawai’i at Mānoa,Department of Mathematics
[2] Texas A&M University,Department of Mathematics
[3] Shanghai Center for Mathematical Sciences,undefined
来源：
Chinese Annals of Mathematics, Series B | 2014年 / 35卷
关键词：
Coarse geometry; Expander; Roe algebra; Property (T); 20F69; 46L85; 51F99;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper discusses “geometric property (T)”. This is a property of metric spaces introduced in earlier works of the authors for its applications to K-theory. Geometric property (T) is a strong form of “expansion property”, in particular, for a sequence (Xn) of bounded degree finite graphs, it is strictly stronger than (Xn) being an expander in the sense that the Cheeger constants h(Xn) are bounded below.
引用
收藏
页码：761 / 800
页数：39
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