The Existence of Periodic Solutions of the Second Order Differential Equations
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摘要:
利用拓扑度和重合度理论,研究了二阶微分方程的周期解,得到了方程至少存在一个周期解的充分条件。
Abstract:
Using the theory of Brouwer degree and coincidence degree,we study the periodic solutions of a kind of second order differential equations and obtain some sufficient conditions for the existence of periodic solutions of the equations.