EXISTENCE OF THE PERIODIC SOLUTION FOR TWO CLASSES OF PIECEWISE SYMMETRIC SYSTEMS
Zhang Wuwei(Chuxiong Teachers College)
In this paper, we study the existence of the periodic solution for two classes ofpiecewise symmetric systems, and obtain certain sufficient conditions for the existence ofthe corresponding systems, and obtain certain sufficient corditions for the existerce ofthe correspording systems. As an application, we proved the exictence of the periodic so-lution for a class of delay differential equations with piecewise symmetric condition.Some relative results in ,  and  are extended.
【CateGory Index】： O175.1