The condition of nonoscillation for a second-order differential equation

• 作 者: CHENG Chong-gao LIU Chun-chao
• 机 构: CollegeofMathematicsandInformationScience
• 出 处: 黄冈师范学院学报
• 发表日期: 2007年6期
• 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 identit
• 基金项目: Foundation item： The key project sponsored by the Hubei Provincial Department of Education, grant No. 2004D003.

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.