Many problems of dynamical systems can be reduced to an iterative functional differential equation.
动力系统的许多问题都可以化为迭代泛函微分方程。
The existence problem for a class of nonlinear retarded functional differential equation is researched.
研究了一类非线性滞后型泛函微分方程周期解的存在性问题。
In this paper, we consider the oscillatory properties of neutral linear variable functional differential equation with piecewise constant delays.
本文研究分段常数变量线性中立型泛函微分方程的振动性。
Som criteria on the asymptotic behavior (such as boundness, tending to zero) of solutions for a kind of third order delay functional differential equation are established.
本文讨论一类三阶时滞泛函微分方程解的渐近性质，给出了若干解的有界性及解趋于零的判定准则。
We obtain sufficient conditions for the oscillation of all solutions of the nonlinear high order neutral functional differential equation with continuous deviating arguments.
研究一类具有连续分布偏差变元的高阶非线性中立型时滞偏微分方程，获得了方程解振动的一些新的判定准则。
This paper deals with the oscillation of the first order nonlinear neutral type functional differential equation, and obtains sufficient criterion of the equation oscillation.
本文研究一阶非线性中立型泛函微分方程的振动性。得到了该方程振动的充分性判别法则。
The oscillation and asymptotic behaviors of three order nonlinear functional differential equation with impulses are investigated, and some sufficient conditions are obtained.
研究了三阶非线性脉冲时滞微分方程解的振动性与渐近性，得到了一些充分判据。
According to the fundamental equation of steady current field, the corresponding functional equation is obtained by use of the linear differential operator.
从稳定电流场基本方程出发，通过定义线性微分算子，推导出与之等价的泛函方程。
The differential equation for the vibration of the riser system is derived by means of functional calculus of variation.
采用泛函变分法导出了隔水管的振动微分方程。
The differential equation for the vibration of the riser system is derived by means of functional calculus of variation.
采用泛函变分法导出了隔水管的振动微分方程。
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