二阶Emden-Fowler型变时滞中立型微分方程的振荡性

摘要

The oscillatory behavior of a class of second-order Emden-Fowler-type nonlinear neutral variable delay functional differential equations is studied in this article.Using a couple generalized Riccati transformation and some necessary analytic techniques,we establish two new oscillation criteria for the equations,which improve and generalize some corresponding known results.%利用广义双黎卡提变换技术及一些分析技巧,研究了一类二阶Emden-Fowler型非线性中立型变时滞泛函微分方程的振荡性,获得了该类方程振荡的2个新的判别准则,推广并改进了现有文献中的一些结果.