English

Groupoid cohomology and extensions

Operator Algebras 2007-05-23 v1

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.

Keywords

Cite

@article{arxiv.math/0404257,
  title  = {Groupoid cohomology and extensions},
  author = {Jean-Louis Tu},
  journal= {arXiv preprint arXiv:math/0404257},
  year   = {2007}
}

Comments

32 pages