{ "id": "1403.2937", "version": "v2", "published": "2014-03-12T14:05:22.000Z", "updated": "2015-12-17T10:15:20.000Z", "title": "SRB measures for partially hyperbolic systems whose central direction is weakly expanding", "authors": [ "Jose F. Alves", "C. L. Dias", "S. Luzzatto", "V. Pinheiro" ], "comment": "Revised version", "categories": [ "math.DS" ], "abstract": "We consider partially hyperbolic \\( C^{1+} \\) diffeomorphisms of compact Riemannian manifolds of arbitrary dimension which admit a partially hyperbolic tangent bundle decomposition \\( E^s\\oplus E^{cu} \\). Assuming the existence of a set of positive Lebesgue measure on which \\( f \\) satisfies a weak nonuniform expansivity assumption in the centre~unstable direction, we prove that there exists at most a finite number of transitive attractors each of which supports an SRB measure. As part of our argument, we prove that each attractor admits a Gibbs-Markov-Young geometric structure with integrable return times. We also characterize in this setting SRB measures which are liftable to Gibbs-Markov-Young structures.", "revisions": [ { "version": "v1", "updated": "2014-03-12T14:05:22.000Z", "comment": "26 pages", "journal": null, "doi": null }, { "version": "v2", "updated": "2015-12-17T10:15:20.000Z" } ], "analyses": { "keywords": [ "srb measure", "partially hyperbolic systems", "central direction", "weakly expanding", "weak nonuniform expansivity assumption" ], "note": { "typesetting": "TeX", "pages": 26, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1403.2937A" } } }