{ "id": "2307.11284", "version": "v1", "published": "2023-07-21T01:01:26.000Z", "updated": "2023-07-21T01:01:26.000Z", "title": "Smooth invariant foliations without a bunching condition and Belitskii's $C^{1}$ linearization for random dynamical systems", "authors": [ "Wenmeng Zhang", "Kening Lu", "Weinian Zhang" ], "categories": [ "math.DS" ], "abstract": "Smooth linearization is one of the central themes in the study of dynamical systems. The classical Belitskii's $C^1$ linearization theorem has been widely used in the investigation of dynamical behaviors such as bifurcations, mixing, and chaotic behaviors due to its minimal requirement of partial second order non-resonances and low regularity of systems. In this article, we revisit Belitskii's $C^1$ linearization theorem by taking an approach based on smooth invariant foliations and study this problem for a larger class of dynamical systems ({\\it random dynamical systems}). We assumed that the linearized system satisfies the condition of Multiplicative Ergodic Theorem and the associated Lyapunov exponents satisfy Belitskii's partial second order non-resonant conditions. We first establish the existence of $C^{1,\\beta}$ stable and unstable foliations without assuming the bunching condition for Lyapunov exponents, then prove a $C^{1,\\beta}$ linearization theorem of Belitskii type for random dynamical systems. As a result, we show that the classical Belitskii's $C^1$ linearization theorem for a $C^{2}$ diffeomorphism $F$ indeed holds without assuming all eigenspaces of the linear system $DF(0)$ are invariant under the nonlinear system $F$, a requirement previously imposed by Belitskii in his proof.", "revisions": [ { "version": "v1", "updated": "2023-07-21T01:01:26.000Z" } ], "analyses": { "subjects": [ "37C15", "37H15" ], "keywords": [ "random dynamical systems", "smooth invariant foliations", "partial second order", "bunching condition", "satisfy belitskiis partial second" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }