higher order functional meaning in English

高阶泛函

Forced oscillation for a class of high order functional differential equations
一类高阶泛函微分方程的强迫振动性
Forced oscillation of a class of nonlinear higher order functional differential equations
一类高阶非线性泛函微分方程的强迫振动性
By using the theory of the coincidence degree , the existence of periodic solutions of iterative type higher order functional differential equations with complex deviating argument is studied , and some new results for the existence of periodic solutions are obtained
摘要利用重合度理论研究一类具复杂偏差变元高阶泛函微分方程的周期解的存在性，得到了存在周期解的新结果。