The Effros-Maréchal topology in the space of von Neumann algebras, II

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We continue our study [9] of the Effros-Maréchal topology on the space vN(H) of all von Neumann algebras acting on a fixed separable Hilbert space H. In particular, we prove that factors of each of the types: II1, II, and (for fixed λ∈[0, 1]) IIIλ, form a dense subset of vN(H). Moreover, the density of type I-factors (or, equivalently, of injective factors) in vN(H), is proved to be equivalent to famous conjectures by A. Connes and E. Kirchberg.

Original languageEnglish
JournalJournal of Functional Analysis
Volume171
Issue number2
Pages (from-to)401-431
Number of pages31
ISSN0022-1236
DOIs
Publication statusPublished - 10 Mar 2000

ID: 233652616