数学物理学报(英文版) ›› 2019, Vol. 39 ›› Issue (6): 1461-1486.doi: 10.1007/s10473-019-0601-z

• 论文 •    下一篇

DECAY ESTIMATE AND GLOBAL EXISTENCE OF SEMILINEAR THERMOELASTIC TIMOSHENKO SYSTEM WITH TWO DAMPING EFFECTS

王维克1, 薛锐2   

  1. 1. School of Mathematical Sciences & Institute of Natural Sciences, Shanghai Jiao Tong University, Shanghai 200240, China;
    2. School of Mathematical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
  • 收稿日期:2018-03-29 修回日期:2019-04-02 出版日期:2019-12-25 发布日期:2019-12-30
  • 通讯作者: Rui XUE,E-mail:xuemantian008@sjtu.edu.cn E-mail:xuemantian008@sjtu.edu.cn
  • 作者简介:Weike WANG,E-mail:wkwang@sjtu.edu.cn
  • 基金资助:
    The first author is supported by National Natural Science Foundation of China (11771284).

DECAY ESTIMATE AND GLOBAL EXISTENCE OF SEMILINEAR THERMOELASTIC TIMOSHENKO SYSTEM WITH TWO DAMPING EFFECTS

Weike WANG1, Rui XUE2   

  1. 1. School of Mathematical Sciences & Institute of Natural Sciences, Shanghai Jiao Tong University, Shanghai 200240, China;
    2. School of Mathematical Sciences, Shanghai Jiao Tong University, Shanghai 200240, China
  • Received:2018-03-29 Revised:2019-04-02 Online:2019-12-25 Published:2019-12-30
  • Contact: Rui XUE,E-mail:xuemantian008@sjtu.edu.cn E-mail:xuemantian008@sjtu.edu.cn
  • Supported by:
    The first author is supported by National Natural Science Foundation of China (11771284).

摘要: In this paper, we study a semilinear Timoshenko system with heat conduction having two damping effects. The observation that two damping effects might lead to smaller decay rates for solutions in comparison to one damping effect is rigorously proved here in providing optimality results. Moreover, the global well-posedness for small data is presented.

关键词: semilinear Timoshenko system, heat conduction, damping, optimal decay rate, eigenvalue expansion method

Abstract: In this paper, we study a semilinear Timoshenko system with heat conduction having two damping effects. The observation that two damping effects might lead to smaller decay rates for solutions in comparison to one damping effect is rigorously proved here in providing optimality results. Moreover, the global well-posedness for small data is presented.

Key words: semilinear Timoshenko system, heat conduction, damping, optimal decay rate, eigenvalue expansion method

中图分类号: 

  • 35A01