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Groupoid cohomology and extensions

Jean-Louis Tu
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Abstract

We show that Haefliger's cohomology for etale groupoids, Moore's cohomology for locally compact groups and the Brauer group of a locally compact groupoid are all particular cases of sheaf (or Cech) cohomology for topological simplicial spaces.

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Jean-Louis Tu. 2004-04-14. Groupoid cohomology and extensions. https://arxiv.org/abs/math/0404257

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