关于一类高阶Liénard型方程周期解的注记

Notes on Periodic Solutions of Certain High Order Liénard Equation

本文研究一类具偏差变元的高阶 Liénard型方程的周期解存在性 ,给出了这类方程周期解存在性的若干充分条件 .

In this paper, some results of the existence of periodic solutions for the Liénard equation are generalized to the high order Liénard equation with deviating argumentsx (2n) +f(t-σ)+β(t)g[x(t-τ(t))]=p(t)=p(t+T).