摘要
利用函数序列方法，得到了保证二阶椭圆型微分方程在外区域Ω上一切解振动的新的充分条件．
The second order elliptic partial differential equations are considered in an exterior domain,some new sufficient conditions for oscillation of all solutions of the equation are obtained by the sequence of functions.
出处
《广东工业大学学报》
CAS
1999年第2期25-29,共5页
Journal of Guangdong University of Technology
关键词
函数序列
椭圆型方程
振动性
解
second order elliptic differential equations
oscillatory solution
sequence of functions
