Existence of periodic solutions for non-autonomous second-order Hamiltonian systems

Electronic Journal of Differential Equations

关键词: Periodic solution;    Hamiltonian systems;    critical point;    variational method;   

DOI  :  

来源: DOAJ

【 摘 要 】

The purpose of this paper is to study the existence of periodicsolutions for a class of non-autonomous second order Hamiltonian systems.New results are obtained by using the least action principle andthe minimax methods, without the so-called Ahmad-Lazer-Paul type condition.

【 授权许可】

Unknown