{ "id": "1908.00998", "version": "v1", "published": "2019-08-02T18:21:22.000Z", "updated": "2019-08-02T18:21:22.000Z", "title": "A note on the fractal dimensions of invariant measures associated with $C^{1+α}-diffeomorphisms, expanding and expansive homeomorphisms", "authors": [ "Alexander Condori", "Silas L. Carvalho" ], "categories": [ "math.DS" ], "abstract": "We show in this work that the upper and the lower generalized fractal dimensions $D^{\\pm}_{\\mu}(q)$, for each $q\\in\\mathbb{R}$, of an ergodic measure associated with an invertible bi-Lipschitz transformation over a Polish metric space are equal, respectively, to its packing and Hausdorff dimensions. This is particularly true for hyperbolic ergodic measures associated with $C^{1+\\alpha}$-diffeomorphisms of smooth compact Riemannian manifolds, from which follows an extension of Young's Theorem (Young, L., S. Dimension, entropy and Lyapunov exponents. Ergodic Theory and Dynamical Systems, 2(1):109-124, 1982). Analogous results are obtained for expanding systems. Furthermore, for expansive homeomorphisms (like $C^1$-Axiom A systems), we show that the set of invariant measures with zero correlation dimension, under a hyperbolic metric, is generic (taking into account the weak topology). We also show that for each $s\\ge 0$, $D^{+}_{\\mu}(s)$ is bounded above, up to a constant, by the topological entropy, also under a hyperbolic metric.", "revisions": [ { "version": "v1", "updated": "2019-08-02T18:21:22.000Z" } ], "analyses": { "subjects": [ "28A78", "28D05", "37B20", "37B10", "37C05" ], "keywords": [ "invariant measures", "expansive homeomorphisms", "smooth compact riemannian manifolds", "hyperbolic metric", "zero correlation dimension" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }