{ "id": "0802.4294", "version": "v2", "published": "2008-02-28T21:16:07.000Z", "updated": "2008-10-26T23:44:51.000Z", "title": "A measure-conjugacy invariant for free group actions", "authors": [ "Lewis Bowen" ], "comment": "The proofs in this version are slightly simpler than in the previous version. Also, the last 3 sections have been removed. I intend to write up the main results of those sections in a separate paper", "categories": [ "math.DS", "math.PR" ], "abstract": "This paper introduces a new measure-conjugacy invariant for actions of free groups. Using this invariant, it is shown that two Bernoulli shifts over a finitely generated free group are measurably conjugate if and only if their base measures have the same entropy. This answers a question of Ornstein and Weiss.", "revisions": [ { "version": "v2", "updated": "2008-10-26T23:44:51.000Z" } ], "analyses": { "subjects": [ "37A35" ], "keywords": [ "free group actions", "measure-conjugacy invariant", "bernoulli shifts", "finitely generated free group", "base measures" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0802.4294B" } } }