摘要
通过一个微分等式,讨论了二阶非线性微分方程非振动的充要条件,推广了有关文献的结果.
Using differential indentity,the necessary and sufficient condition of nonoscillation for differential equation of second order were discussed,and the generalizations of known results were given out.
出处
《河南科学》
2010年第6期646-648,共3页
Henan Science
基金
国家自然科学基金计划资助项目(60572001)
关键词
微分方程
非振动
充要条件
differential indentity
necessary and sufficient condition
nonoscillation
