数学物理学报(英文版) ›› 2023, Vol. 43 ›› Issue (4): 1865-1880.doi: 10.1007/s10473-023-0424-9

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ASYMPTOTICAL STABILITY OF NEUTRAL REACTION-DIFFUSION EQUATIONS WITH PCAS AND THEIR FINITE ELEMENT METHODS

Hao HAN1,2, Chengjian ZHANG1,2,†   

  1. 1. School of Mathematics and Statistics, Huazhong University of Science and Technology, Wuhan 430074, China;
    2. Hubei Key Laboratory of Engineering Modeling and Scientific Computing, Huazhong University of Science and Technology, Wuhan 430074, China
  • 收稿日期:2022-02-21 修回日期:2022-07-25 发布日期:2023-08-08
  • 作者简介:Hao HAN, E-mail: D201880002@hust.edu.cn
  • 基金资助:
    *NSFC (11971010).

ASYMPTOTICAL STABILITY OF NEUTRAL REACTION-DIFFUSION EQUATIONS WITH PCAS AND THEIR FINITE ELEMENT METHODS

Hao HAN1,2, Chengjian ZHANG1,2,†   

  1. 1. School of Mathematics and Statistics, Huazhong University of Science and Technology, Wuhan 430074, China;
    2. Hubei Key Laboratory of Engineering Modeling and Scientific Computing, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2022-02-21 Revised:2022-07-25 Published:2023-08-08
  • About author:Hao HAN, E-mail: D201880002@hust.edu.cn
  • Supported by:
    *NSFC (11971010).

摘要: This paper focuses on the analytical and numerical asymptotical stability of neutral reaction-diffusion equations with piecewise continuous arguments. First, for the analytical solutions of the equations, we derive their expressions and asymptotical stability criteria. Second, for the semi-discrete and one-parameter fully-discrete finite element methods solving the above equations, we work out the sufficient conditions for assuring that the finite element solutions are asymptotically stable. Finally, with a typical example with numerical experiments, we illustrate the applicability of the obtained theoretical results.

关键词: neutral reaction-diffusion equations, piecewise continuous arguments, asymptotical stability, finite element methods, numerical experiment

Abstract: This paper focuses on the analytical and numerical asymptotical stability of neutral reaction-diffusion equations with piecewise continuous arguments. First, for the analytical solutions of the equations, we derive their expressions and asymptotical stability criteria. Second, for the semi-discrete and one-parameter fully-discrete finite element methods solving the above equations, we work out the sufficient conditions for assuring that the finite element solutions are asymptotically stable. Finally, with a typical example with numerical experiments, we illustrate the applicability of the obtained theoretical results.

Key words: neutral reaction-diffusion equations, piecewise continuous arguments, asymptotical stability, finite element methods, numerical experiment