{ "id": "math/0408291", "version": "v1", "published": "2004-08-22T00:57:31.000Z", "updated": "2004-08-22T00:57:31.000Z", "title": "Crossed products by minimal homeomorphisms", "authors": [ "Huaxin Lin", "N. Christopher Phillips" ], "comment": "AMSLaTeX; 24 pages, no figures", "categories": [ "math.OA" ], "abstract": "Let X be an infinite compact metric space with finite covering dimension and let h be a minimal homeomorphism of X. Let A be the associated crossed product C*-algebra. We show that A has tracial rank zero whenever the image of K_0 (A) in the affine functions on the tracial state space of A is dense. As a consequence, we show that these crossed product C*-algebras are in fact simple AH algebras with real rank zero. When X is connected and h is further assumed to be uniquely ergodic, then the above happens if and only if the rotation number associated to h has irrational values. By applying the classification theorem for nuclear simple C*-algebras with tracial rank zero, we show that two such dynamical systems have isomorphic crossed products if and only if they have isomorphic scaled ordered K-theory.", "revisions": [ { "version": "v1", "updated": "2004-08-22T00:57:31.000Z" } ], "analyses": { "subjects": [ "46L55" ], "keywords": [ "crossed product", "minimal homeomorphism", "tracial rank zero", "infinite compact metric space", "fact simple ah algebras" ], "note": { "typesetting": "TeX", "pages": 24, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2004math......8291L" } } }