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Displaying similar documents to “Amenable groups and cellular automata”

Folner sets of alternate directed groups

Jérémie Brieussel (2014)

Annales de l’institut Fourier

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An explicit family of Folner sets is constructed for some directed groups acting on a rooted tree of sublogarithmic valency by alternate permutations. In the case of bounded valency, these groups were known to be amenable by probabilistic methods. The present construction provides a new and independent proof of amenability, using neither random walks, nor word length.