Proper actions of wreath products and generalizations

Abstract : We study stability properties of the Haagerup property and of coarse embeddability in a Hilbert space, under certain semidirect products. In particular, we prove that they are stable under taking standard wreath products. Our construction also allows for a characterization of subsets with relative Property T in a standard wreath product.
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Article dans une revue
Transactions of the American Mathematical Society, American Mathematical Society, 2012, 364 (6), pp.3159-3184
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https://hal.archives-ouvertes.fr/hal-00473061
Contributeur : Yves Stalder <>
Soumis le : mercredi 14 avril 2010 - 10:52:38
Dernière modification le : mercredi 28 novembre 2018 - 14:48:22

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  • HAL Id : hal-00473061, version 1

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Yves Stalder, Yves De Cornulier, Alain Valette. Proper actions of wreath products and generalizations. Transactions of the American Mathematical Society, American Mathematical Society, 2012, 364 (6), pp.3159-3184. 〈hal-00473061〉

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