中国科学技术大学学报 ›› 2015, Vol. 45 ›› Issue (9): 727-732.DOI: 10.3969/j.issn.0253-2778.2015.09.004

• 论著 • 上一篇    

广义霍尔磁流体力学方程弱解的快速衰减

陶群群,章飞,董柏青   

  1. 安徽大学数学科学学院,安徽合肥 230039
  • 收稿日期:2015-05-19 修回日期:2015-07-14 接受日期:2015-07-14 出版日期:2015-07-14 发布日期:2015-07-14

Rapid time decay of weak solutions to the generalized Hall-magneto-hydrodynamics equations

TAO Qunqun, ZHANG Fei, DONG Boqing   

  1. School of Mathematical Sciences, Anhui University, Hefei 230039, China
  • Received:2015-05-19 Revised:2015-07-14 Accepted:2015-07-14 Online:2015-07-14 Published:2015-07-14
  • Contact: DONG Boqing
  • About author:TAO Qunqun, female, born in 1990, postgraduate. Research field: differential equations. E-mail: qunquntao123@163.com
  • Supported by:
    Supported by the NNSF of China (11271019).

摘要: 主要研究了广义霍尔磁流体力学方程解的快速衰减问题.利用经典的Fourier变换方法,得到了弱解的L2衰减(1+t)-7[]4.这一结论主要是基于非线性项的低频效率.

关键词: 广义Hall-MHD方程, 时间衰减, 频数估计, 不可压的

Abstract: The rapid time decay for solutions to the generalized Hall-magneto-hydrodynamics equations was studied. By developing the classic Fourier splitting methods, the more rapid L2 decay rate of the weak solutions as (1+t)-74 was derived. The trick is mainly based on the even lower frequency effect of the nonlinear term.

Key words: generalized Hall-MHD equations, time decay, frequency estimation, incompressible

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