摘要
考察了具有两个偏差变元的广义Liénard型方程,利用重合度理论研究其周期解问题,得到了该方程周期解存在的充分条件,结论丰富了现有文献的结果。
In this paper,tdhe existence of periodic solution for a kind of Liénard equation with two deviating arguments is investigated by applying Mawhin's coincidence degree theory,and some sufficient criteria are established,which improve some known results.
出处
《青岛大学学报(自然科学版)》
CAS
2009年第1期5-9,共5页
Journal of Qingdao University(Natural Science Edition)
关键词
广义Liénard型方程
偏差变元
周期解
重合度
generalized Liénard equations
deviating arguments
periodic solutions
coincidence degree