Full Groups and Soficity
نویسندگان
چکیده
First, we answer a question of Pestov, by proving that the full group of a sofic equivalence relation is a sofic group. Then, we give a short proof of the theorem of Grigorchuk and Medynets that the topological full group of a minimal Cantor homeomorphism is LEF. Finally, we show that for certain non-amenable groups all the generalized lamplighter groups are sofic.
منابع مشابه
Soficity, Dynamics, and Entropy
References [1] B. Blackadar and E. Kirchberg. Generalized inductive limits of finite-dimensional C *-algebras. A new application of random matrices: Ext(C * red (F2)) is not a group.
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