{ "id": "1610.03213", "version": "v1", "published": "2016-10-11T07:00:31.000Z", "updated": "2016-10-11T07:00:31.000Z", "title": "On some generalizations of skew-shifts on $\\mathbb{T}^2$", "authors": [ "Kristian Bjerklöv" ], "comment": "45 pages, 11 figures", "categories": [ "math.DS" ], "abstract": "In this paper we investigate maps of the two-torus $\\mathbb{T}^2$ of the form $T(x,y)=(x+\\omega,g(x)+f(y))$ for Diophantine $\\omega\\in\\mathbb{T}$ and for a class of maps $f,g:\\mathbb{T}\\to\\mathbb{T}$, where each $g$ is strictly monotone and of degree 2, and each $f$ is an orientation preserving circle homeomorphism. For our class of $f$ and $g$ we show that $T$ is minimal and has exactly two invariant and ergodic Borel probability measures. Moreover, these measures are supported on two $T$-invariant graphs. One of the graphs is a Strange Nonchaotic Attractor whose basin of attraction consists of (Lebesgue) almost all points in $\\mathbb{T}^2$. Only a low regularity assumption (Lipschitz) is needed on the maps $f$ and $g$, and the results are robust with respect to Lipschitz-small perturbations of $f$ and $g$.", "revisions": [ { "version": "v1", "updated": "2016-10-11T07:00:31.000Z" } ], "analyses": { "subjects": [ "37C40", "37C70", "37E30" ], "keywords": [ "generalizations", "skew-shifts", "ergodic borel probability measures", "low regularity assumption", "strange nonchaotic attractor" ], "note": { "typesetting": "TeX", "pages": 45, "language": "en", "license": "arXiv", "status": "editable" } } }