Random attractor and SRB measure for stochastic Hopf bifurcation under discretization

Fuente: arXiv
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Autori principali: Chen, Chuchu, Hong, Jialin, Wang, Yibo
Natura: Preprint
Pubblicazione: 2025
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author Chen, Chuchu
Hong, Jialin
Wang, Yibo
author_facet Chen, Chuchu
Hong, Jialin
Wang, Yibo
contents Chaotic phases in stochastic differential equations are characterized by two essential long-time dynamical features: a random attractor capturing asymptotic geometry and a Sinai-Ruelle-Bowen (SRB) measure describing statistical information. This paper investigates whether the stochastic Hopf bifurcation under discretization could inherit both features. We establish that the stochastic Hopf bifurcation under discretization induces a discrete random dynamical system. Further, we prove that this discrete system possesses a random attractor, and then derive the existence of an SRB measure by demonstrating a strictly positive numerical Lyapunov exponent. Numerical experiments visualize the retained random attractor and SRB measure for the discrete random dynamical system, revealing structures consistent with the theoretical chaotic phase.
format Preprint
id arxiv_https___arxiv_org_abs_2509_12865
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Random attractor and SRB measure for stochastic Hopf bifurcation under discretization
Chen, Chuchu
Hong, Jialin
Wang, Yibo
Dynamical Systems
Chaotic phases in stochastic differential equations are characterized by two essential long-time dynamical features: a random attractor capturing asymptotic geometry and a Sinai-Ruelle-Bowen (SRB) measure describing statistical information. This paper investigates whether the stochastic Hopf bifurcation under discretization could inherit both features. We establish that the stochastic Hopf bifurcation under discretization induces a discrete random dynamical system. Further, we prove that this discrete system possesses a random attractor, and then derive the existence of an SRB measure by demonstrating a strictly positive numerical Lyapunov exponent. Numerical experiments visualize the retained random attractor and SRB measure for the discrete random dynamical system, revealing structures consistent with the theoretical chaotic phase.
title Random attractor and SRB measure for stochastic Hopf bifurcation under discretization
topic Dynamical Systems
url https://arxiv.org/abs/2509.12865