Conditioned stochastic stability of equilibrium states on uniformly hyperbolic sets

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Hauptverfasser: Cornudella, Bernat Bassols, Castro, Matheus M.
Format: Preprint
Veröffentlicht: 2025
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author Cornudella, Bernat Bassols
Castro, Matheus M.
author_facet Cornudella, Bernat Bassols
Castro, Matheus M.
contents We establish the conditioned stochastic stability of equilibrium states for Hölder potentials on uniformly hyperbolic sets. While standard stochastic stability characterises measures on attractors, we analyse the statistics of transient dynamics on non-attracting sets by conditioning small random perturbations of the dynamics to not escape from our regions of interest. We prove that as the noise intensity vanishes, the quasi-ergodic measure of the $e^ϕ$-weighted process generated by $\e$-small random perturbations of the deterministic dynamics converges to the unique equilibrium state associated with the potential $ϕ- \log \left|\det \left. D T\right|_{E^u}\right|$. The results are obtained via perturbative spectral analysis of transfer operators acting on anisotropic Banach spaces and topological hyperbolic dynamics arguments. Furthermore, we extend this framework globally to Axiom A diffeomorphisms with multiple basic sets using dynamical filtrations. This work provides a rigorous characterisation of natural measures on uniformly hyperbolic repellers, which are fundamental in the context of transient chaos.
format Preprint
id arxiv_https___arxiv_org_abs_2506_15503
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Conditioned stochastic stability of equilibrium states on uniformly hyperbolic sets
Cornudella, Bernat Bassols
Castro, Matheus M.
Dynamical Systems
Probability
60J05, 37C30, 37D20, 37D35, 37D45
We establish the conditioned stochastic stability of equilibrium states for Hölder potentials on uniformly hyperbolic sets. While standard stochastic stability characterises measures on attractors, we analyse the statistics of transient dynamics on non-attracting sets by conditioning small random perturbations of the dynamics to not escape from our regions of interest. We prove that as the noise intensity vanishes, the quasi-ergodic measure of the $e^ϕ$-weighted process generated by $\e$-small random perturbations of the deterministic dynamics converges to the unique equilibrium state associated with the potential $ϕ- \log \left|\det \left. D T\right|_{E^u}\right|$. The results are obtained via perturbative spectral analysis of transfer operators acting on anisotropic Banach spaces and topological hyperbolic dynamics arguments. Furthermore, we extend this framework globally to Axiom A diffeomorphisms with multiple basic sets using dynamical filtrations. This work provides a rigorous characterisation of natural measures on uniformly hyperbolic repellers, which are fundamental in the context of transient chaos.
title Conditioned stochastic stability of equilibrium states on uniformly hyperbolic sets
topic Dynamical Systems
Probability
60J05, 37C30, 37D20, 37D35, 37D45
url https://arxiv.org/abs/2506.15503