Cohomology of property T groupoids and applications

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We extend the Delorme-Guichardet characterization of Kazhdan property $T$ groups to $r$-discrete measured groupoids. We give several applications, in particular to stability results of Kazhdan property $T$ and to the study of cocycles taking values in a group having the Haagerup property.
43 pages

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Dynamical Systems, Operator Algebras, 22F10; 22D40; 28D15; 28D99; 37A15; 37A20

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http://salesiana.dossiersoluciones.com/handle/123456789/68330

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0308158
 http://arxiv.org/abs/math/0308158

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arXiv