L²-Betti numbers for subfactors

2006/01/17 by Thom, Andreas
#46L10 #FOS: Mathematics #Operator Algebras (math.OA)

paper · doi:10.48550/arxiv.math/0601408

Abstract

We study L²-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.

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