二阶非线性中立型泛函微分方程的振动准则  

Oscillation Criteria for Second Order Nonlinear Functional Differential Equations

作　　者：于跃华[1] 孟华[1] 杨波[1] 

机构地区：[1]湖南文理学院数学系,常德415000

出　　处：《数学理论与应用》2005年第4期59-61,共3页Mathematical Theory and Applications

摘　　要：本文研究了二类二阶泛函微分方程的振动准则,推广了已有文献中的相应结论.Several oscillation criteria for nonlinear functional equation of second order are established. The result obtained improved and generalized the corresponding results in some known literatures.

关 键 词：泛函微分方程 中立型 振动准则 非线型 

分 类 号：O175.2[理学—数学]