variational equation

A boundary integral equation and variational formulation for the solution to a class of periodical parabolic equations is presented, which is a heat conduction equation. The error estimates of the approximate solutions are given.

得到了周期性热传导抛物型方程的边界积分方程和边界变分方程，给出了近似解误差估计。

The complete Euler equation set contains all kinds of Euler equations of the variational problems.

该方程组涵盖了变分问题的各种欧拉方程.

By theory says, the variational principle and the Schrodinger equation are equal.

从原理上讲, 变分原理与薛定谔方程等价.

An investigation is carried out on the problem involved in 4D variational data assimilation ( VDA) with constraint conditions based on a finite-element shallow-water equation model.

考察了具约束条件的四维变分资料同化问题，首先引入解决该类问题的一般理论与方法，然后用有限元浅水模式对具高频重力波约束条件的四维变分同化问题进行数值试验。

This paper sets up a class of generalized impulse control models in part ( I), proves the existence of relevant variational equation solution.

本文在（Ⅰ）中建立了一类推广型的脉冲控制模型，证明了相应的变分方程解的存在性。

We first set up a equivalent variational equation for the initial-boundary value problem of the Cahn-Hilliard equation ( 1),( 2),( 3).

本文首先对cahn一Hiiliard方程之初边值问题（l），（2），（3）建立了与之等价的变分形式.证明了如果。