{ "id": "1808.00735", "version": "v1", "published": "2018-08-02T09:48:53.000Z", "updated": "2018-08-02T09:48:53.000Z", "title": "Limit theorems for some skew products with mixing base maps", "authors": [ "Yeor Hafouta" ], "categories": [ "math.PR", "math.DS" ], "abstract": "We obtain central limit theorem, local limit theorems and renewal theorems for stationary processes generated by skew product maps $T(\\om,x)=(\\te\\om,T_\\om x)$ together with a $T$-invariant measure, whose base map $\\te$ satisfies certain topological and mixing conditions and the maps $T_\\om$ on the fibers are certain non-singular distance expanding maps. Our results hold true when $\\te$ is either a sufficiently fast mixing Markov shift or a (non-uniform) Young tower with at least one periodic point and polynomial tails. %In fact, our conditions will be satisfied %when $\\om$ is the whole orbit the towers. The proofs are based on the random complex Ruelle-Perron-Frobenius theorem from \\cite{book} applied with appropriate random transfer operators generated by $T_\\om$, together with certain regularity assumptions (as functions of $\\om$) of these operators. Limit theorems for deterministic processes whose distributions on the fibers are generated by Markov chains with transition operators satisfying a random version of the Doeblin condition will also be obtained. The main innovation in this paper is that the results hold true even though the spectral theory used in \\cite{Aimino} does not seem to be applicable, and the dual of the Koopman operator of $T$ (with respect to the invariant measure) does not seem to have a spectral gap.", "revisions": [ { "version": "v1", "updated": "2018-08-02T09:48:53.000Z" } ], "analyses": { "keywords": [ "limit theorem", "mixing base maps", "skew product", "fast mixing markov shift", "results hold true" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }