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arXiv 1705.04091math.GRmath.FA
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群与$G$ -集的顺从性

Amenability of groups and $G$-sets

Laurent Bartholdi

摘要:

本文调查的经典和最近的结果在该领域的顺从的群体,从组合的角度来看。它曾作为哥廷根大学和高等师范学校课程的支持。文本的目标是(1)尽可能独立,以便为该领域的新人提供良好的介绍;(2)强调组合工具的使用,与泛函分析,概率等合作,以离散的群体为焦点;(3)从一开始就考虑更一般的概念,顺应行动;(4)描述最近的类的例子,特别是集团作用于康托集和拓扑完全群。

英文摘要:

This text surveys classical and recent results in the field of amenability of groups, from a combinatorial standpoint. It has served as the support of courses at the University of Göttingen and the École Normale Supérieure. The goals of the text are (1) to be as self-contained as possible, so as to serve as a good introduction for newcomers to the field; (2) to stress the use of combinatorial tools, in collaboration with functional analysis, probability etc., with discrete groups in focus; (3) to consider from the beginning the more general notion of amenable actions; (4) to describe recent classes of examples, and in particular groups acting on Cantor sets and topological full groups.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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