数学物理学报(英文版) ›› 2010, Vol. 30 ›› Issue (4): 1347-1356.doi: 10.1016/S0252-9602(10)60130-0

• 论文 • 上一篇    

STABILITY OF GASEOUS STARS IN THE NON-ISENTROPIC CASE

邓引斌, 巴娜, 谢华朝*   

  1. School of Mathematics and Statistics, Huazhong Normal University, Wuhan 430079, China
  • 收稿日期:2008-09-22 修回日期:2009-02-12 出版日期:2010-07-20 发布日期:2010-07-20
  • 通讯作者: 谢华朝 E-mail:ybdeng@public.wh.hb.cn; bana1002@126.com; hzh_xie@yahoo.com.cn
  • 基金资助:

    Research was supported by NSFC (10631030) and the fund of CCNU for Ph.D Students (2009021)

STABILITY OF GASEOUS STARS IN THE NON-ISENTROPIC CASE

 DENG Yin-Bin, BA Na, XIE Hua-Chao*   

  1. School of Mathematics and Statistics, Huazhong Normal University, Wuhan 430079, China
  • Received:2008-09-22 Revised:2009-02-12 Online:2010-07-20 Published:2010-07-20
  • Contact: XIE Hua-Chao E-mail:ybdeng@public.wh.hb.cn; bana1002@126.com; hzh_xie@yahoo.com.cn
  • Supported by:

    Research was supported by NSFC (10631030) and the fund of CCNU for Ph.D Students (2009021)

摘要:

The motion of the self-gravitational gaseous stars can be described by the Euler-Poisson equations. The main purpose of this article is concerned with the nonlinear stability of gaseous stars  in the non-isentropic case, when
4/3 < γ <2, S(x, t) is a smooth bounded function. First, we verify  that  the steady states are minimizers of the energy via concentration-compactness method; then using the variational approach we obtain the stability results of the non-isentropic flow.

关键词: Euler-Poisson equations, non-isentropic, stability

Abstract:

The motion of the self-gravitational gaseous stars can be described by the Euler-Poisson equations. The main purpose of this article is concerned with the nonlinear stability of gaseous stars  in the non-isentropic case, when
4/3 < γ <2, S(x, t) is a smooth bounded function. First, we verify  that  the steady states are minimizers of the energy via concentration-compactness method; then using the variational approach we obtain the stability results of the non-isentropic flow.

Key words: Euler-Poisson equations, non-isentropic, stability

中图分类号: 

  • 35J60