English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We show that if   A   is a (not necessarily unital) separable, simple and non‐type I C  M  ‐algebra, then for every properly infinite hyperfinite von Neumann algebra   M   with separable predual, its Ocneanu central sequence algebraM  ′   ∩   M  ωarises as a sub‐quotient of the central sequence algebra    F  (  A  )    defined by the second‐named author. In particular, this answers affirmatively the question of Kirchberg [‘Central sequences inC   ∗    ‐algebras and strongly purely infinite algebras’,  Operator algebras: the Abel Symposium 2004 , Proceedings of the First Abel Symposium, Oslo, 3–5 September 2004 (eds O. Bratteli, S. Neshveyev and C. Skau; Springer, Berlin, Heidelberg, 2006), X, 279, 175–231]: the central sequenceC   ∗    ‐algebra of the reduced free groupC   ∗    ‐algebraC   red   ∗   (   F  2   )    is non‐commutative.

Non‐commutativity of the central sequence algebra for separable non‐type I C*‐algebras