A Kurosh type theorem for type II1 factors
Abstract
We prove a Kurosh type theorem for free-product type II1 factors. In particular, if M = LF2 R, then the free-product type II1 factors M*...*M are all prime and pairwise non-isomorphic. This paper is a continuation of [N. Ozawa, Solid von Neumann algebras] and [N. Ozawa and S. Popa, Some prime factorization results for type II1 factors].
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