J4 ›› 2012, Vol. 11 ›› Issue (4): 11-13.
文章的主要目的是研究一类二阶哈密顿系统的周期解的存在性。通过使用最小作用原理获得了一个新的存在性定
理。
The purpose of this paper is to study the existence of periodic solutions of a class of second order Hamiltonian systems.One new existence theorem is obtained by using the least action principle.