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arXiv · 1310.6941

A new look at the Julg-Valette homotopy for groups acting on trees

Abstract

We propose a new look at the Julg-Valette theorem on K-theoretic amenability for groups operating on trees. The main tool is a generalization of a construction of uniformly bounded representations of the free groups due to Pytlik and Szwarc.

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Pierre Julg. 2014-02-11. A new look at the Julg-Valette homotopy for groups acting on trees. https://arxiv.org/abs/1310.6941

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