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Zapiski Nauchnykh Seminarov POMI, 2005, Volume 326, Pages 85–96
(Mi znsl339)
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This article is cited in 11 scientific papers (total in 11 papers)
Amenable actions of nonamenable groups
R. I. Grigorchuk, V. V. Nekrashevych Texas A&M University
Abstract:
We give two ways of constructing amenable (in the sense of Greenleaf)
actions of nonamenable groups. In the first part of the paper we
construct a class of faithful transitive amenable actions of the free
group using Schreier graphs. In the second part we show that every
finitely generated residually finite group can be embedded into a bigger
residually finite group, which acts level-transitively on a locally
finite rooted tree, so that the induced action on the boundary of the tree
is amenable on every orbit.
Received: 26.05.2005
Citation:
R. I. Grigorchuk, V. V. Nekrashevych, “Amenable actions of nonamenable groups”, Representation theory, dynamical systems, combinatorial and algoritmic methods. Part XIII, Zap. Nauchn. Sem. POMI, 326, POMI, St. Petersburg, 2005, 85–96; J. Math. Sci. (N. Y.), 140:3 (2007), 391–397
Linking options:
https://www.mathnet.ru/eng/znsl339 https://www.mathnet.ru/eng/znsl/v326/p85
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Abstract page: | 406 | Full-text PDF : | 142 | References: | 74 |
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