摘要
本文利用整体反函数理论证明了受迫Liénard方程x″+f(x)x′+g(t,x)=e(t)周期解的存在唯一性,推广和改进了现有的结果.
By using global inverse function theorems this paper proves the existense and uniqueness of periodic solution of forced Liénard equation
x″+f(x)x′+g(t,x)=e(t)
The results generalize and improve some known results.
基金
徐州工程学院科研课题(200507)