IOD-type continuity-sets of bi-spatial attractors for random nonautonomous FitzHugh-Nagumo equations

We discuss the continuity-set for a family of pullback random bi-spatial attractors, with respect to the Hausdorff metric on the end space. Under six conditions, we show that the continuity-set is an IOD-type (Intersection of countably many Open Dense sets) in the index space and has the continuum cardinality, which extend the recent results from the initial space to the end space. Applying the abstract results to random nonautonomous FitzHugh-Nagumo equations driven by a family of Wong-Zakai processes with a noise-size in $ (0, \infty] $, where the infinity corresponds to the deterministic equation, we prove the existence and IOD-type continuity of pullback random bi-spatial attractors in the higher order Lebesgue space with respect to the noise-size, moreover, the continuity-set is dense with the continuum cardinality.

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Publication Details

Journal
Discrete and Continuous Dynamical Systems - B
Published
2025-08-26
DOI
https://doi.org/10.3934/dcdsb.2025130
Primary Topic
Stability and Controllability of Differential Equations
Type
article
Field-Weighted Citation Impact
0.00

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article

IOD-type continuity-sets of bi-spatial attractors for random nonautonomous FitzHugh-Nagumo equations

Liu Guifen, Yangrong Li
Discrete and Continuous Dynamical Systems - B
Stability and Controllability of Differential Equations
article

IOD-type continuity-sets of bi-spatial attractors for random nonautonomous FitzHugh-Nagumo equations

Liu Guifen, Yangrong Li
article en

Abstract

We discuss the continuity-set for a family of pullback random bi-spatial attractors, with respect to the Hausdorff metric on the end space. Under six conditions, we show that the continuity-set is an IOD-type (Intersection of countably many Open Dense sets) in the index space and has the continuum cardinality, which extend the recent results from the initial space to the end space. Applying the abstract results to random nonautonomous FitzHugh-Nagumo equations driven by a family of Wong-Zakai processes with a noise-size in $ (0, \infty] $, where the infinity corresponds to the deterministic equation, we prove the existence and IOD-type continuity of pullback random bi-spatial attractors in the higher order Lebesgue space with respect to the noise-size, moreover, the continuity-set is dense with the continuum cardinality.

Discrete and Continuous Dynamical Systems - BVol. 32(0)
Southwest University (CN)
National Natural Science Foundation of China
Openalex Percentile: Top 73%
Stability and Controllability of Differential Equations
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IOD-type continuity-sets of bi-spatial attractors for random nonautonomous FitzHugh-Nagumo equations — Liu Guifen, Yangrong Li · Discrete and Continuous Dynamical Systems - B (2025) | TGRS Research Map | TGRS