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- W3098397325 abstract "Following up on previous work, we prove a number of results for C*-algebras with the weak ideal property or topological dimension zero, and some results for C*-algebras with related properties. Some of the more important results include: The weak ideal property implies topological dimension zero. For a separable C*-algebra~A, topological dimension zero is equivalent to RR (O_2 otimes A) = 0, to D otimes A having the ideal property for some (or any) Kirchberg algebra~D, and to A being residually hereditarily in the class of all C*-algebras B such that O_{infty} otimes B contains a nonzero projection. Extending the known result for Z_2, the classes of C*-algebras with topological dimension zero, with the weak ideal property, and with residual (SP) are closed under crossed products by arbitrary actions of abelian 2-groups. If A and B are separable, one of them is exact, A has the ideal property, and B has the weak ideal property, then A otimes_{min} B has the weak ideal property. If X is a totally disconnected locally compact Hausdorff space and A is a C_0 (X)-algebra all of whose fibers have one of the weak ideal property, topological dimension zero, residual (SP), or the combination of pure infiniteness and the ideal property, then A also has the corresponding property (for topological dimension zero, provided A is separable). Topological dimension zero, the weak ideal property, and the ideal property are all equivalent for a substantial class of separable C*-algebras including all separable locally AH algebras. The weak ideal property does not imply the ideal property for separable Z-stable C*-algebras. We give other related results, as well as counterexamples to several other statements one might hope for." @default.
- W3098397325 created "2020-11-23" @default.
- W3098397325 creator A5062916209 @default.
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- W3098397325 date "2017-12-01" @default.
- W3098397325 modified "2023-09-26" @default.
- W3098397325 title "The Weak Ideal Property and Topological Dimension Zero" @default.
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- W3098397325 doi "https://doi.org/10.4153/cjm-2017-012-4" @default.
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