arXiv:math/0308158 Abstract

arXiv:math/0308158 [math.DS]Abstract References Reviews Resources

Cohomology of property T groupoids and applications

Published 2003-08-18Version 1

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.

Comments: 43 pages

Categories: math.DS, math.OA

Subjects: 22F10, 22D40, 28D15, 28D99, 37A15, 37A20

Keywords: applications, cohomology, kazhdan property, stability results, delorme-guichardet characterization

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