{ "id": "2202.03456", "version": "v1", "published": "2022-02-07T19:01:13.000Z", "updated": "2022-02-07T19:01:13.000Z", "title": "Distal systems in topological dynamics and ergodic theory", "authors": [ "Nikolai Edeko", "Henrik Kreidler" ], "categories": [ "math.DS" ], "abstract": "We generalize a result of Lindenstrauss on the interplay between measurable and topological dynamics which shows that every separable ergodic measurably distal dynamical system has a minimal distal model. We show that such a model can, in fact, be chosen completely canonically. The construction is performed by going through the Furstenberg--Zimmer tower of a measurably distal system and showing that at each step, there is a simple and canonical distal minimal model. This hinges on a new characterization of isometric extensions in topological dynamics.", "revisions": [ { "version": "v1", "updated": "2022-02-07T19:01:13.000Z" } ], "analyses": { "subjects": [ "37A05", "37B05" ], "keywords": [ "topological dynamics", "distal system", "ergodic theory", "canonical distal minimal model", "ergodic measurably distal dynamical system" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }