{ "id": "math/0205044", "version": "v1", "published": "2002-05-06T09:42:29.000Z", "updated": "2002-05-06T09:42:29.000Z", "title": "Polynomial growth of the derivative for diffeomorphisms on tori", "authors": [ "Krzysztof Fraczek" ], "comment": "41 pages, 1 figure", "categories": [ "math.DS" ], "abstract": "We consider area--preserving diffeomorphisms on tori with zero entropy. We classify ergodic area--preserving diffeomorphisms of the 3--torus for which the sequence $\\{Df^n\\}_{n\\in{\\Bbb N}}$ has polynomial growth. Roughly speaking, the main theorem says that every ergodic area--preserving $C^2$--diffeomorphism with polynomial uniform growth of the derivative is $C^2$--conjugate to a 2--steps skew product of the form \\[\\tor^3\\ni(x_1,x_2,x_3)\\mapsto (x_1+\\alpha,\\ep x_2+\\beta(x_1),x_3+\\gamma(x_1,x_2))\\in\\tor^3,\\] where $\\ep=\\pm 1$. We also indicate why there is no 4--dimensional analogue of the above result. Random diffeomorphisms on the 2--torus are studied as well.", "revisions": [ { "version": "v1", "updated": "2002-05-06T09:42:29.000Z" } ], "analyses": { "subjects": [ "37A05", "37C05", "37C40" ], "keywords": [ "polynomial growth", "polynomial uniform growth", "derivative", "main theorem says", "random diffeomorphisms" ], "note": { "typesetting": "TeX", "pages": 41, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2002math......5044F" } } }