但这一偏微分方程不能直接积分，所以通常用纳维法、瑞利-里兹法、有限差分方法等方法求解。
But this partial differential equation can not be directly integral, so usually use Navier method, Rayleigh Ritz method and finite difference method and other methods.
提出一种求解基于细线结构的时域电场积分方程(TDEFIE)的方法-有限差分方法。
A finite difference method was derived for the analysis of time domain electric field integral equation (TDEFIE) of thin wire structures.
差分型直接积分法求解动力方程，其计算假设条件给系统增加了一个“计算扰动”效应。
The difference type direction integration is used for solving dynamic - equation, its calculation assumption causes a "calculation perturbation" effects to the system.
对于坑(井)—地的特殊情况，利用有限差分和积分方程法进行了正演模拟计算，获得了数据。
For the pit (well) -ground special circumstances, Using the finite difference and integral equation method forward modeling Observation data.
摘要通过对积分算子谱的估计，作者给出了一阶线性微分差分方程在边值条件下解的存在唯一性定理。
In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition.
给出了该框架的控制方程组及其差分形式、边界条件、时间积分方案等。
The control equations, the difference expressions, the boundary condition and the time integral scheme etc. are also given.
采用二分步法，从积分型方程出发，在有限控制体上建立守恒型差分格式，对二维浅水波方程进行求解。
By use of the time split method, a conservation difference formula is established to find the solution to the shallow water equation based on the finite volume control method from integral equations.
提出相邻历元间差分算法，大大简化了观测方程，同时避免积分常量的计算。
A differential arithmetic is proposed for simplifying the observational equation as well as for avoiding the computation of the unknown integer constant.
因此，在不确定条件下的时域仿真转化为间隔的差分方程，这需要一定的时间间隔积分法解决。
Thus, time domain simulation under uncertainty is transformed to the solving of interval differential equations, which needs a certain interval integral method.
所得的结果适用于微分差分方程和具连续分布滞量的积分微分方程。
Results are useful for differential difference equations and differential integral equations with continuous distributed retards.
通过对积分算子谱的估计，作者给出了一阶线性微分差分方程在边值条件下解的存在唯一性定理。
In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition.
通过对积分算子谱的估计，作者给出了一阶线性微分差分方程在边值条件下解的存在唯一性定理。
In this paper, by estimates of spectral of an integral operator, the authors give a theorem on the existence of solutions for first order differential difference equations with boundary condition.
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