数学物理学报(英文版) ›› 2015, Vol. 35 ›› Issue (3): 746-760.doi: 10.1016/S0252-9602(15)30018-7

• 论文 • 上一篇    

ASYMPTOTIC BEHAVIOR OF THE STOKES APPROXIMATION EQUATIONS FOR COMPRESSIBLE FLOWS IN R3

吴云顺1,2, 谭忠3   

  1. 1. School of Mathematical Sciences, Xiamen University, Xiamen 361005, China;
    2. School of Mathematics and Computer Science, Guizhou Normal University, Guiyang 550001, China;
    3. School of Mathematical Sciences, Xiamen University, Xiamen 361005, China
  • 收稿日期:2014-05-08 出版日期:2015-05-01 发布日期:2015-05-01
  • 通讯作者: Yunshun WU E-mail:wuyunshun1979@163.com
  • 基金资助:

    Supported by National Natural Science Foundation of China (11271305, 11161011) and Science and Technology Foundation of Guizhou Province of China (LKS[2012]11, LKS[2013]03, LKS[2013]05).

ASYMPTOTIC BEHAVIOR OF THE STOKES APPROXIMATION EQUATIONS FOR COMPRESSIBLE FLOWS IN R3

Yunshun WU1,2, Zhong TAN3   

  1. 1. School of Mathematical Sciences, Xiamen University, Xiamen 361005, China;
    2. School of Mathematics and Computer Science, Guizhou Normal University, Guiyang 550001, China;
    3. School of Mathematical Sciences, Xiamen University, Xiamen 361005, China
  • Received:2014-05-08 Online:2015-05-01 Published:2015-05-01
  • Contact: Yunshun WU E-mail:wuyunshun1979@163.com
  • Supported by:

    Supported by National Natural Science Foundation of China (11271305, 11161011) and Science and Technology Foundation of Guizhou Province of China (LKS[2012]11, LKS[2013]03, LKS[2013]05).

摘要:

We consider the Stokes approximation equations for compressible flows in R3. The global unique solution and optimal convergence rates are obtained by pure energy method provided the initial perturbation around a constant state is small. In particular, the optimal decay rates of the higher-order spatial derivatives of the solution are obtained. As an immediate byproduct, the usual Lp-L2(1≤ p≤ 2) type of the optimal decay rate follow without requiring that the Lp norm of initial data is small.

关键词: Stokes approximation equations, energy method, optimal decay rates, Sobolev interpolation, negative Sobolev space

Abstract:

We consider the Stokes approximation equations for compressible flows in R3. The global unique solution and optimal convergence rates are obtained by pure energy method provided the initial perturbation around a constant state is small. In particular, the optimal decay rates of the higher-order spatial derivatives of the solution are obtained. As an immediate byproduct, the usual Lp-L2(1≤ p≤ 2) type of the optimal decay rate follow without requiring that the Lp norm of initial data is small.

Key words: Stokes approximation equations, energy method, optimal decay rates, Sobolev interpolation, negative Sobolev space

中图分类号: 

  • 35B40