{ "id": "1007.0171", "version": "v2", "published": "2010-07-01T14:04:02.000Z", "updated": "2011-09-20T12:27:24.000Z", "title": "Poisson approximation for the number of visits to balls in nonuniformly hyperbolic dynamical systems", "authors": [ "J. -R. Chazottes", "P. Collet" ], "comment": "41 pages, to appear in Ergod. Th. & Dynam. Sys", "categories": [ "math.DS", "math.PR", "nlin.CD" ], "abstract": "We study the number of visits to balls B_r(x), up to time t/mu(B_r(x)), for a class of non-uniformly hyperbolic dynamical systems, where mu is the SRB measure. Outside a set of `bad' centers x, we prove that this number is approximately Poissonnian with a controlled error term. In particular, when r-->0, we get convergence to the Poisson law for a set of centers of mu-measure one. Our theorem applies for instance to the H\\'enon attractor and, more generally, to systems modelled by a Young tower whose return-time function has a exponential tail and with one-dimensional unstable manifolds. Along the way, we prove an abstract Poisson approximation result of independent interest.", "revisions": [ { "version": "v2", "updated": "2011-09-20T12:27:24.000Z" } ], "analyses": { "subjects": [ "37D25", "60F05" ], "keywords": [ "nonuniformly hyperbolic dynamical systems", "abstract poisson approximation result", "controlled error term", "independent interest", "poisson law" ], "note": { "typesetting": "TeX", "pages": 41, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010arXiv1007.0171C" } } }