摘要
讨论了一类二阶非线性微分方程 .利用一般的Riccati变换和完全平方技术 ,得到了方程新的振动准则 .
The authors discuss a class of second order nonlinear differential equations.By using the generalized Riccati transformation and the integral averaging technique,new osciallation criteria are obtained for all solutions of the equations to be oscilltory.Our results generalized and extend some known oscillation criteria in the literature.
出处
《河北大学学报（自然科学版）》
CAS
2002年第2期114-117,共4页
Journal of Hebei University(Natural Science Edition)
基金
TheprojectissupportedbyNaturalScienceFoundationofHeibeiProvince(198710 0 5 )
关键词
二阶非线性微分方程
阻尼项
振动性
second order nonlinear differential equations
damping term
oscillation.
