English

Compact operators and algebraic $K$-theory for groups which act properly and isometrically on Hilbert space

K-Theory and Homology 2014-12-16 v5 Algebraic Topology Group Theory Operator Algebras

Abstract

We prove the KK-theoretic Farrell-Jones conjecture for groups as in the title with coefficient rings and CC^*-algebras which are stable with respect to compact operators. We use this and Higson-Kasparov's result that the Baum-Connes conjecture with coefficients holds for such groups, to show that if GG is as in the title then the algebraic and the CC^*-crossed products of GG with a stable CC^*-algebra have the same KK-theory.

Keywords

Cite

@article{arxiv.1311.6285,
  title  = {Compact operators and algebraic $K$-theory for groups which act properly and isometrically on Hilbert space},
  author = {Guillermo Cortiñas and Gisela Tartaglia},
  journal= {arXiv preprint arXiv:1311.6285},
  year   = {2014}
}

Comments

Final version, to appear in Journal f\"ur die reine und angewandte Mathematik