非自治p(t)-拉普拉斯系统周期解的存在性
EXISTENCE OF PERIODIC SOLUTIONS FOR NON-AUTONOMOUS P(t-LAPLACIAN SYSTEMS

本文研究一类非自治p（t）-Laplace系统.利用鞍点定理和极小作用原理，获得了周期解存在的充分条件，推广和改进了文献[8]中的结果.
In this paper,we investigate a class of non-autonomous p(t-Laplacian system.By using saddle point theorem and the least action principle,some sufficient conditions for the existence of periodic solutions are obtained,which generalize and improve the resuls in[8]