Uniform non-amenability, cost, and the first ℓ2-Betti number
نویسندگان
چکیده
منابع مشابه
Uniform Non–amenability of Free Burnside Groups
The aim of the present note is to show that free Burnside groups of sufficiently large odd exponent are non–amenable in a certain strong sense, more precisely, their left regular representations are isolated from the trivial representation uniformly on finite generating sets. This result is applied to the solution of a strong version of the von Neumann – Day problem concerning amenability of gr...
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ژورنال
عنوان ژورنال: Groups, Geometry, and Dynamics
سال: 2008
ISSN: 1661-7207
DOI: 10.4171/ggd/49