摘要
In this paper,by proving a differential identity,we obtain a necessary and sufficient condition of nonoscillation for a second-order differential equation.We also improve the known results of nonoscillation for a second-order differential equation.
In this paper, by proving a differential identity, we obtain a necessary and sufficient condition of nonoscillation for a second-order differential equation. We also improve the known results of nonoscillation for a second-order differential equation.
出处
《黄冈师范学院学报》
2007年第6期4-7,共4页
Journal of Huanggang Normal University
基金
the Hubei Provincial Department of Education,grant No.2004D003
关键词
次级微分方程
微分特性
非波动性
充分必要条件
second-order differential equation
differential identity
nonoscillation.
