differential-difference equation的意思|示意

At first we can get the Lagrangian function from the elliptic equation, then replace differential coefficient by difference and get the discrete Lagrangian function.

给定一个椭圆方程，我们先找出这个方程的拉氏函数，用差分代替微分，得到离散的拉氏函数。

This paper studies the necessary and sufficient condition of uniformly convergent difference scheme for the elliptic-parabolic partial differential equation with a small parameter.

本文研究小参数椭圆-抛物偏微分方程一致收敛差分格式的充要条件。

Studying Brownian motion by the difference equation, We can find that the partial differential equation describing the Brownian particle motion is a diffusion equation in mathematical physics.

引入差分方程研究布朗运动，会发现极限情况下的布朗运动所遵循的偏微分方程就是数学物理方程中的扩散方程。

In this paper, the second order fully discrete difference method for a partial integro-differential equation is considered.

本文给出了数值求解一类偏积分微分方程的二阶全离散差分格式。

The alternating direction difference method for the two-dimensional nonlinear delay parabolic differential equation is given.

研究二维非线性延迟抛物型微分方程交替方向差分方法。

Two-point boundary value problems of second order Hammerstein type integro-differential-difference equation is studied by means of differential inequality theories.

基于时滞微分不等式的方法，提出此网络在平衡点的渐近指数稳定的充分条件。