华东师范大学学报(自然科学版) ›› 2012, Vol. 2012 ›› Issue (1): 113-120.

• 应用数学与基础数学 • 上一篇    下一篇

三阶非线性中立型泛函微分方程的振动性

韩忠月   

  1. 德州学院 数学系, 山东 德州 253023
  • 收稿日期:2011-03-01 修回日期:2011-06-01 出版日期:2012-01-25 发布日期:2012-01-26

Oscillations of a class of third order nonlinear neutral functional differential

HAN Zhong-yue   

  1. Department of Mathematics, Dezhou University, Dezhou Shandong 253023,  China
  • Received:2011-03-01 Revised:2011-06-01 Online:2012-01-25 Published:2012-01-26

摘要: 利用广义~Riccati~变换和积分平均技巧, 研究一类三阶中立型泛函微分方程的振动性质, 建立了保证此方程一切解振动或者收敛于零的若干新的充分条件, 推广和改进了一些已有结果, 并给出了应用实例.

关键词: 三阶中立型微分方程, 振动准则, Kamenev~型, Philos型

Abstract: The oscillations of a class of third order nonlinear neutral functional differential equations was discussed, by using the generalized Riccati transformation and the integral averaging technique; and some new  sufficient conditions for oscillations or tends to zero of all solutions of the equations were obtained. The
example  to illustrate the main results were given. The results extend and improve some known results.

Key words: third order neutral differential equation, oscillation criteria, Kamenev type, Philos type

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