Then the new step function space is introduced and stability problem for the finite difference scheme is discussed by means of variational approximation method.
然后引入新的步长函数空间，并在这个空间上，采用变分近似法讨论该格式的稳定性问题。
By means of the variational approximation and direct simulations we demonstrate the one-soliton state trapped in a channel has no existence threshold and is always stable.
通过数值方法直接求解非线性薛定格方程以及变分法近似求出了束缚于一个“凹槽”中的单个空间光孤子解，这种光孤子的存在没有阈值范围，且总是稳定传输的。
Then the new function space is introduced and the stability problem for the finite difference scheme is discussed by means of variational approximation method in this function space.
然后引入新的函数空间，并在这个空间上，采用变分近似法讨论了该格式的稳定性问题。
A convergence estimate and approximation for a kind of parabolic variational inequality is discussed.
本文讨论了一类抛物型变分不等式的近似收敛问题。
It proposes an approximation method with two variational parameters for finding the eigen-energies by principle of minimal sensitivity.
提出了一种可借助于最小敏感性原理求解本征能量的双变分参数的近似方法。
Studied in this paper is the nonconforming finite element approximation to the second order variational obstacle problem with displacement obstacle on the anisotropic meshess.
本文研究位移障碍下二阶变分不等式问题在各向异性网格上的非协调有限元逼近。
The course also examines approximation methods: WKB method, variational principle, and perturbation theory.
同时，本课程也解释了几种常用的近似方法：WKB方法、变分原理、以及微扰理论。
The Boundary element approximation for the parabolic variational inequalities of the second kind is discussed.
讨论了第二类抛物型变分不等式的边界近似。
Using the variational iteration theory, the approximation of the solution for its model is obtained for short cut calculation.
利用变分迭代理论，简捷地得到了该模型解的近似展开式。
Unconventional double set parameter finite element approximation for a fourth order variational inequality with displacement obstacle is considered.
研究位移障碍下的一个四阶变分不等式的非常规双参数有限元逼近。
Unconventional double set parameter finite element approximation for a fourth order variational inequality with displacement obstacle is considered.
研究位移障碍下的一个四阶变分不等式的非常规双参数有限元逼近。
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