{ "id": "1208.1473", "version": "v3", "published": "2012-08-07T17:35:13.000Z", "updated": "2014-04-21T18:21:53.000Z", "title": "Area-preserving diffeomorphisms of the torus whose rotation sets have non-empty interior", "authors": [ "Salvador Addas-Zanata" ], "comment": "to be published in Erg. Th. & Dyn. Sys", "categories": [ "math.DS" ], "abstract": "In this paper we consider $C^{1+\\epsilon}$ area-preserving diffeomorphisms of the torus $f,$ either homotopic to the identity or to Dehn twists. We suppose that $f$ has a lift $\\widetilde{f}$ to the plane such that its rotation set has interior and prove, among other things that if zero is an interior point of the rotation set, then there exists a hyperbolic $\\widetilde{f}$-periodic point $\\widetilde{Q}$$\\in {\\rm I}\\negthinspace {\\rm R^2}$ such that $W^u(\\widetilde{Q})$ intersects $W^s(\\widetilde{Q}+(a,b))$ for all integers $(a,b)$, which implies that $\\bar{W^u(\\widetilde{Q})}$ is invariant under integer translations. Moreover, $\\bar{W^u(\\widetilde{Q})}=\\bar{W^s(\\widetilde{Q})}$ and $\\widetilde{f}$ restricted to $\\bar{W^u(\\widetilde{Q})}$ is invariant and topologically mixing. Each connected component of the complement of $\\bar{W^u(\\widetilde{Q})}$ is a disk with uniformly bounded diameter. If $f$ is transitive, then $\\bar{W^u(\\widetilde{Q})}=$${\\rm I}\\negthinspace {\\rm R^2}$ and $\\widetilde{f}$ is topologically mixing in the whole plane.", "revisions": [ { "version": "v3", "updated": "2014-04-21T18:21:53.000Z" } ], "analyses": { "keywords": [ "rotation set", "area-preserving diffeomorphisms", "non-empty interior", "periodic point", "interior point" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1208.1473A" } } }