{ "id": "1903.02251", "version": "v1", "published": "2019-03-06T09:08:52.000Z", "updated": "2019-03-06T09:08:52.000Z", "title": "A note on minimal models for pmp actions", "authors": [ "Andy Zucker" ], "categories": [ "math.DS", "math.GR" ], "abstract": "Given a countable group $G$, we say that a metrizable flow $Y$ is model-universal if by considering the various invariant measures on $Y$, we can recover every free measure-preserving $G$-system up to isomorphism. Weiss has constructed a minimal model-universal flow. In this note, we provide a new, streamlined construction, allowing us to show that a minimal model-universal flow is far from unique.", "revisions": [ { "version": "v1", "updated": "2019-03-06T09:08:52.000Z" } ], "analyses": { "keywords": [ "minimal models", "pmp actions", "minimal model-universal flow", "invariant measures", "metrizable flow" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }