数学物理学报 ›› 2005, Vol. 25 ›› Issue (3): 374-380.

• 论文 • 上一篇    下一篇

二阶含阻尼项椭圆型方程的区域振动准则

 徐志庭, 邢鸿雁   

  1. 华南师范大学数学系,广东工业大学应用数学系
  • 出版日期:2005-07-24 发布日期:2005-07-24

Domain Criteria for Oscillation of Second Order Damped Elliptic Equations

 XU Zhi-Ting, GENG Hong-Yan-   

  • Online:2005-07-24 Published:2005-07-24

摘要:

籍用平均函数和积分算子, 对二阶含阻尼项椭圆型微分方程∑^N_{i,j=1}{D_i[a_{ij}(x)D_j{y}]+∑^N_{i=1}b_i (x)D_i{y}+q(x)f(y)=0建立了一些区域振动准则, 这些准则不同于已知的依赖于整个区域Ω(1)的性质的结果,而是仅依赖于区域Ω(1)的一列子区域的性质.

关键词: 区域振动,二阶含阻尼项椭圆型微分方程,平均函数;积分算 子

Abstract:

By using average functions and integral operators, some  domain oscillation criteria  for second order demped elliptic equations  are tablished,which are different from most known ones in the sens e that   they are based on the information only on a sequence of subdomians of Ω(1),  rather than on the whole of  Ω(1).

Key words: Domain oscillation; , Second order demped elliptic equat ions, Averaging function, Integral operator.

中图分类号: 

  • 35J60