随机三维全局修正非自治纳维-斯托克斯方程的随机指数吸引子的存在性和连续性

IF 2.3 2区 数学 Q1 MATHEMATICS Journal of Differential Equations Pub Date : 2025-02-15 Epub Date: 2024-11-19 DOI:10.1016/j.jde.2024.11.014
Zongfei Han , Shengfan Zhou
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引用次数: 0

摘要

本文涉及四个问题。(i) 基于连续非自主确定性动力学系统(NDDS)和连续非自主随机动力学系统(NRDS)的标准,我们分别为连续 NDDS 构造了指数吸引子,为连续非自主随机动力学系统(NRDS)构造了随机指数吸引子族。(ii) 我们证明,当随机扰动强度趋近于零时,这个随机指数吸引子族在对称豪斯多夫距离的意义上是连续的(或稳定的、稳健的,即上下半连续的)。(iii) 我们证明,对于两个共轭 NRDS,如果其中一个具有随机指数吸引子,那么另一个也具有随机指数吸引子;对于两个共轭 NRDS 族,如果其中一个族的随机指数吸引子族是连续的,那么另一个族的相应随机指数吸引子族也是连续的。(iv) 我们将抽象结果应用于研究具有加性噪声的三维全局修正非自治纳维-斯托克斯方程的随机指数吸引子的存在性和连续性。
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Existence and continuity of random exponential attractors for stochastic 3D globally modified non-autonomous Navier-Stokes equation
In this paper, we deal with four problems. (i) Based on criteria for a continuous non-autonomous deterministic dynamical system (NDDS) and a continuous non-autonomous random dynamical system (NRDS), we construct an exponential attractor for a continuous NDDS and a family of random exponential attractors for a family of continuous non-autonomous random dynamical systems (NRDS), respectively. (ii) We prove that this family of random exponential attractors is continuous (or stable, robust, i.e., upper and lower semi-continuous) in the sense of the symmetric Hausdorff distance as the intensity of stochastic perturbations approaches zero. (iii) We prove that for two conjugate NRDS, if one has a random exponential attractor, then the other has a random exponential attractor, and that for two families of conjugate NRDS, if a family of random exponential attractors for one family is continuous, then a corresponding family of random exponential attractors for the other family is continuous. (iv) We apply our abstract result to study the existence and continuity of random exponential attractors for 3D globally modified non-autonomous Navier-Stokes equation with additive noise.
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来源期刊
CiteScore
4.40
自引率
8.30%
发文量
543
审稿时长
9 months
期刊介绍: The Journal of Differential Equations is concerned with the theory and the application of differential equations. The articles published are addressed not only to mathematicians but also to those engineers, physicists, and other scientists for whom differential equations are valuable research tools. Research Areas Include: • Mathematical control theory • Ordinary differential equations • Partial differential equations • Stochastic differential equations • Topological dynamics • Related topics
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