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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https://hal.archives-ouvertes.fr/hal-00876928
Contributor : Pierre Julg <>
Submitted on : Tuesday, February 11, 2014 - 5:53:03 PM
Last modification on : Thursday, May 3, 2018 - 3:32:06 PM
Long-term archiving on: Sunday, April 9, 2017 - 10:51:24 AM

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  • HAL Id : hal-00876928, version 2
  • ARXIV : 1310.6941

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Pierre Julg. A new look at the Julg-Valette homotopy for groups acting on trees.. 2014. ⟨hal-00876928v2⟩

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