摘要
该文首次利用Ｃａｒｉｓｔｉｃ不动点原理来研究非线性系统的周期解的存在性，给出了周期解存在的一系列判据，为周期解理论增添了新的内容。
in this paper, the Caristic fixed point theorems are employed to study theexistence of periodic solution for nonlinear systems,a series of criterions are given, the newcontent to the theory of periodic solution is added.
出处
《广西师院学报（自然科学版）》
1999年第4期1-4,共4页
Journal of Guangxi Teachers College(Natural Science Edition)
