{ "id": "0704.3651", "version": "v3", "published": "2007-04-27T19:44:49.000Z", "updated": "2009-02-06T18:06:30.000Z", "title": "Crossed products by finite group actions with the Rokhlin property", "authors": [ "Hiroyuki Osaka", "N. Christopher Phillips" ], "comment": "22 pages; AMSLaTeX. Changes for version 3: One theorem (on ideals in crossed products by the Rokhlin property) removed; it will appear in a different paper. Minor improvements. Changes for version 2: Substantial expansion", "categories": [ "math.OA" ], "abstract": "We prove that a number of classes of separable unital C*-algebras are closed under crossed products by finite group actions with the Rokhlin property, including: (1) AI algebras, AT algebras, and related classes characterized by direct limit decompositions using semiprojective building blocks. (2) Simple unital AH algebras with slow dimension growth and real rank zero. (3) C*-algebras with real rank zero or stable rank one. (4) C*-algebras whose quotients all satisfy the Universal Coefficient Theorem. Along the way, we give a systematic treatment of the derivation of direct limit decompositions from local approximation conditions by homomorphic images which are not necessarily injective.", "revisions": [ { "version": "v3", "updated": "2009-02-06T18:06:30.000Z" } ], "analyses": { "subjects": [ "46L55", "46L35" ], "keywords": [ "finite group actions", "rokhlin property", "crossed products", "real rank zero", "direct limit decompositions" ], "note": { "typesetting": "TeX", "pages": 22, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2007arXiv0704.3651O" } } }