On the definition of L2-Betti numbers of equivalence relations

Abstract

We show that the L2-Betti numbers of equivalence relations defined by R. Sauer coincide with those defined by D. Gaboriau.

10 pages, AMS-LaTeX

Cited by in corpus (2)

• $L^2$-homology for inclusions of von Neumann algebras
• A groupoid approach to Lück's amenability conjecture