{ "id": "1512.01266", "version": "v1", "published": "2015-12-03T22:13:08.000Z", "updated": "2015-12-03T22:13:08.000Z", "title": "Some universality results for dynamical systems", "authors": [ "Udayan B. Darji", "Étienne Matheron" ], "comment": "15 pages", "categories": [ "math.DS" ], "abstract": "We prove some \"universality\" results for topological dynamical systems. In particular, we show that for any continuous self-map $T$ of a perfect Polish space, one can find a dense, $T$-invariant set homeomorphic to the Baire space ${\\mathbb N}^{\\mathbb N}$; that there exists a bounded linear operator $U: \\ell_1 \\rightarrow \\ell_1$ such that any linear operator $T$ from a separable Banach space into itself with $\\Vert T\\Vert\\leq 1$ is a linear factor of $U$; and that given any $\\sigma$-compact family ${\\mathcal F}$ of continuous self-maps of a compact metric space, there is a continuous self-map $U_{\\mathcal F}$ of ${\\mathbb N}^{\\mathbb N}$ such that each $T\\in {\\mathcal F}$ is a factor of $U_{\\mathcal F}$.", "revisions": [ { "version": "v1", "updated": "2015-12-03T22:13:08.000Z" } ], "analyses": { "subjects": [ "37B99", "54H20", "54C20", "47A99" ], "keywords": [ "dynamical systems", "universality results", "continuous self-map", "compact metric space", "invariant set homeomorphic" ], "note": { "typesetting": "TeX", "pages": 15, "language": "en", "license": "arXiv", "status": "editable" } } }