English

L^2-Betti numbers for subfactors

Operator Algebras 2007-05-23 v2

Abstract

We study L^2-Betti numbers for von Neumann algebras, as defined by D. Shlyakhtenko and A. Connes, in the presence of a bi-finite correspondence and prove a proportionality formula.

Cite

@article{arxiv.math/0601408,
  title  = {L^2-Betti numbers for subfactors},
  author = {Andreas Thom},
  journal= {arXiv preprint arXiv:math/0601408},
  year   = {2007}
}