摘要
采用Lyapunov-Schmidt约化结合Sturm特征值比较方法,将二阶Duffing方程转化为单个函数方程.通过研究函数的单调性,给出Duffing方程的周期解的存在性与唯一性.
This paper obtains the existence and uniqueness of periodic solutions of the second order equation of Duffing type by means of Lyapunov- Schmidt reduction combining with Sturm comparison argument.
出处
《数学年刊(A辑)》
CSCD
北大核心
2006年第6期723-730,共8页
Chinese Annals of Mathematics
关键词
周期解
拓扑度
L—S约化方法
Periodic solution, Lyapunov-Schmidt reduction, Duffing equation.