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\mathrm{C}^*-algebras associated to homeomorphisms twisted by vector bundles over finite dimensional spaces.
- Source :
- Transactions of the American Mathematical Society; Mar2024, Vol. 377 Issue 3, p1597-1640, 44p
- Publication Year :
- 2024
-
Abstract
- In this paper we study Cuntz–Pimsner algebras associated to 퐶*-correspondences over commutative \mathrm {C}^*-algebras from the point of view of the \mathrm {C}^*-algebra classification programme. We show that when the correspondence comes from an aperiodic homeomorphism of a finite dimensional infinite compact metric space X twisted by a vector bundle, the resulting Cuntz–Pimsner algebras have finite nuclear dimension. When the homeomorphism is minimal, this entails classification of these \mathrm {C}^*-algebras by the Elliott invariant. This establishes a dichotomy: when the vector bundle has rank one, the Cuntz–Pimsner algebra has stable rank one. Otherwise, it is purely infinite. For a Cuntz–Pimsner algebra of a minimal homeomorphism of an infinite compact metric space X twisted by a line bundle over X, we introduce orbit-breaking subalgebras. With no assumptions on the dimension of X, we show that they are centrally large subalgebras and hence simple and stably finite. When the dimension of X is finite, they are furthermore \mathcal {Z}-stable and hence classified by the Elliott invariant. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00029947
- Volume :
- 377
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- Transactions of the American Mathematical Society
- Publication Type :
- Academic Journal
- Accession number :
- 176214181
- Full Text :
- https://doi.org/10.1090/tran/8900