二阶非线性中立型泛函微分方程周期解的存在性

Existence of Periodic Solution for Second Order Nonlinear Neutral Delay Equation

利用重合度理论,研究一类二阶非线性中立型泛函微分方程的周期解的存在性,得到了该方程周期解存在的新的结果.

By using the coincidence degree theory, some new results for the existence of second order nonlinear neutral delay periodic solution of the equations are obtained.