数学物理学报 ›› 2023, Vol. 43 ›› Issue (1): 82-92.

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带有分布导数的反应扩散方程在$\Bbb R ^{n}$中全局吸引子的存在性

朱凯旋1,*(),孙涛1(),谢永钦2()   

  1. 1湖南文理学院数理学院 湖南常德 415000
    2长沙理工大学数学与统计学院 长沙 410114
  • 收稿日期:2021-10-12 修回日期:2022-08-05 出版日期:2023-02-26 发布日期:2023-03-07
  • 通讯作者: *朱凯旋, E-mail: zhukx12@163.com
  • 作者简介:孙涛, E-mail: suntao5771@163.com|谢永钦, E-mail: xieyq@csust.edu.cn
  • 基金资助:
    湖南省自然科学基金(2022JJ30417);湖南省教育厅科学研究基金(21A0414);湖南省教育厅科学研究基金(21B0617);湖南文理学院科技创新团队项目(数值计算和随机过程及应用)

Global Attractors for a Class of Reaction-Diffusion Equations with Distribution Derivatives in $\Bbb R ^{n}$

Zhu Kaixuan1,*(),Sun Tao1(),Xie Yongqin2()   

  1. 1College of Mathematics and Physics Science, Hunan University of Arts and Science, Hunan Changde 415000
    2School of Mathematics and Statistics, Changsha University of Science and Technology, Changsha 410114
  • Received:2021-10-12 Revised:2022-08-05 Online:2023-02-26 Published:2023-03-07
  • Supported by:
    Hunan Province Natural Science Foundation of China(2022JJ30417);Scientific Research Fund of Hunan Provincial Education Department(21A0414);Scientific Research Fund of Hunan Provincial Education Department(21B0617);Hunan University of Arts and Science(STIT): Numerical Calculation & Stochastic Process with Their Applications

摘要:

该文考虑 $\Bbb R ^{n}$ 中一类带有加权项 $V(x)$ 和分布导数的反应扩散方程解的长时间行为, 证明了 $\big(L^{2}(\Bbb R ^{n}), L^{2}(\Bbb R ^{n})\cap L^{p}(\Bbb R ^{n})\big)$ -全局吸引子的存在性; 而且对任意的 $\delta_{1}\in [0,+\infty)$, 该吸引子能够在 $L^{2}\cap L^{p+\delta_{1}}$ -拓扑下吸引 $L^{2}(\Bbb R ^{n})$ 中的有界集.

关键词: 反应扩散方程, 渐近高阶可积性, 全局吸引子

Abstract:

In this paper, we consider the long-time behavior of solutions for a class of reaction-diffusion equations in $\Bbb R ^{n}$ with weighted terms $V(x)$ and some distribution derivatives in inhomogeneous terms. We prove that the $\big(L^{2}(\Bbb R ^{n}), L^{2}(\Bbb R ^{n})\cap L^{p}(\Bbb R ^{n})\big)$-global attractors indeed can attract every bounded subset of $L^{2}(\Bbb R ^{n})$ with the $L^{2}\cap L^{p+\delta_{1}}$-norm for any $\delta_{1}\in [0,+\infty)$.

Key words: Reaction-diffusion equations, Asymptotic higher-order integrability, Global attractors

中图分类号: 

  • O193