Nekhoroshev stability for random generalized Hamiltonian systems with different regularities

In this article, we establish the Nekhoroshev stability of nearly integrable generalized Hamiltonian systems with bounded random perturbations possessing different regularity conditions. We generalize the original framework for proving the Nekhoroshev theorem. Using this unified framework, we can derive different normal form lemmas based on various regularity conditions, leading to results for stability times of different scales. Furthermore, this method allows perturbation functions with a certain degree of randomness and can be applied within the context of generalized Hamiltonian systems.

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Publication Details

Journal
Journal of Differential Equations
Published
2025-08-25
DOI
https://doi.org/10.1016/j.jde.2025.113709
Primary Topic
Quantum chaos and dynamical systems
Type
article
Field-Weighted Citation Impact
0.00

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article

Nekhoroshev stability for random generalized Hamiltonian systems with different regularities

Bo Yu, Yong Li
Journal of Differential Equations
Quantum chaos and dynamical systems
article

Nekhoroshev stability for random generalized Hamiltonian systems with different regularities

Bo Yu, Yong Li
article en

Abstract

In this article, we establish the Nekhoroshev stability of nearly integrable generalized Hamiltonian systems with bounded random perturbations possessing different regularity conditions. We generalize the original framework for proving the Nekhoroshev theorem. Using this unified framework, we can derive different normal form lemmas based on various regularity conditions, leading to results for stability times of different scales. Furthermore, this method allows perturbation functions with a certain degree of randomness and can be applied within the context of generalized Hamiltonian systems.

Journal of Differential EquationsVol. 448
Natural Science Foundation of Jilin Province, National Natural Science Foundation of China, National Key Research and Development Program of China
Openalex Percentile: Top 83%
Quantum chaos and dynamical systems
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