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Vanishing of the cyclic cohomology of infinite von Neumann algebras

Ricardo Bianconi

math.OAarXiv:math/0606544

Abstract

We prove that if A is an infinite von Neumann algebra (i. e., the identity can be decomposed as a sum of a sequence of pairwise disjoint projections, all equivalent to the identity) then the cyclic cohomology of A vanishes. We show that the method of the proof applies to certain algebras of infinite matrices.

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