{ "id": "1507.07524", "version": "v1", "published": "2015-07-27T18:49:29.000Z", "updated": "2015-07-27T18:49:29.000Z", "title": "A Criterion for $\\mathcal{Z}$-Stability with Applications to Crossed Products", "authors": [ "Julian Buck", "Aaron Tikuisis" ], "comment": "6 pages", "categories": [ "math.OA" ], "abstract": "Building on an argument by Toms and Winter, we show that if $A$ is a simple, separable, unital, $\\mathcal{Z}$-stable C*-algebra, then the crossed product of $C(X,A)$ by an automorphism is also Z-stable, provided that the automorphism induces a minimal homeomorphism on $X$. As a consequence, we observe that if $A$ is nuclear and purely infinite then the crossed product is a Kirchberg algebra.", "revisions": [ { "version": "v1", "updated": "2015-07-27T18:49:29.000Z" } ], "analyses": { "keywords": [ "crossed product", "applications", "automorphism induces", "kirchberg algebra", "minimal homeomorphism" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2015arXiv150707524B" } } }