English

An equivalence theorem for reduced Fell bundle C*-algebras

Operator Algebras 2011-11-28 v1

Abstract

We show that if E is an equivalence of upper semicontinuous Fell bundles B and C over groupoids, then there is a linking bundle L(E) over the linking groupoid L such that the full cross-sectional algebra of L(E) contains those of B and C as complementary full corners, and likewise for reduced cross-sectional algebras. We show how our results generalise to groupoid crossed-products the fact, proved by Quigg and Spielberg, that Raeburn's symmetric imprimitivity theorem passes through the quotient map to reduced crossed products.

Keywords

Cite

@article{arxiv.1111.5753,
  title  = {An equivalence theorem for reduced Fell bundle C*-algebras},
  author = {Aidan Sims and Dana P. Williams},
  journal= {arXiv preprint arXiv:1111.5753},
  year   = {2011}
}

Comments

17 pages

R2 v1 2026-06-21T19:41:00.887Z