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The Jiang–Su algebra revisited

  • Mikael Rørdam and Wilhelm Winter
Published/Copyright: February 9, 2010
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Journal für die reine und angewandte Mathematik
From the journal Volume 2010 Issue 642

Abstract

We give a number of new characterizations of the Jiang–Su algebra 𝒵, both intrinsic and extrinsic, in terms of C*-algebraic, dynamical, topological and K-theoretic conditions. Along the way we study divisibility properties of C*-algebras, we give a precise characterization of those unital C*-algebras of stable rank one that admit a unital embedding of the dimension-drop C*-algebra Zn, n+1, and we prove a cancellation theorem for the Cuntz semigroup of C*-algebras of stable rank one.

Received: 2008-01-14
Revised: 2009-01-15
Published Online: 2010-02-09
Published in Print: 2010-May

© Walter de Gruyter Berlin · New York 2010

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