查询词典 variational problem

According to the variational characteristics of physical variates in discrete for-mation model,we achieve physical variate description using Walsh function .

文中给出了两个定义和四个定理，研究了一维、二维和三维离散地层模型的沃尔什函数描述法，并给出了一维模型的描述实例。

The solution of a variational equation system corresponding to this kind of problems is obtained.

该文求得了与此类问题有关的一个变分方程组的解，并且证明了最佳控制的存在性。

The solution of a variational equation system correspondi ng to this kind of problems is obtained.

该文求得了与此类问题有关的一个变分方程组的解，并且证明了最佳控制的存在性。

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

本文在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。

In this paper we describe formulations and develop fast algorithms for implicit surface reconstruction based on variational and partial differential equation methods.

本文中描述了一种基于差分和偏微分方程的重建隐式曲面的快速算法。

Then, we derive the incremental variational equation for nonlinear large deformation analysis by using energy principle of power form.

三、利用功率形式的能量原理，导出了非线性大变形有限元分析新的增量变分方程。

The approximation of meshless methods, the selection of weight function, the variational form and the discrete equation, and the numerical implementation are described.

描述了无网格法的近似方案、权函数的选择、变分形式和离散方程以及数值求解的实现。

This paper studies some complex analysis problems associated with differiential equationa and obtains a series of conclusions,these conclusions will be the key point in the studying of variational equation s.

讨论了一些有关微分方程的复杂的分析问题并得到一系列结论，这些结论在变分方程的研究中起关键作用。

Key words: applied mathematics; forth-order difference equation; discrete variational principles; periodic solution

关键 词：应用数学；四阶差分方程；临界点理论；周期解

Using the variational formulation and its discretization equation, we get its finite element algebra equation and solve it by the method of Newton iteration.

通过对方程做变分、离散得到其有限元代数方程组，并选择了Newton迭代法来求解该方程组。

"The operators will suffer a temporary decrease in the number of consumers and short message services as people may not like having to provide their ID cards for a phone number," Xu Junqi, vice-dean with the Policy-Making Institute of the Telecommunications Research Centre under MII, said yesterday.

信息产业部下属的通信决策研究院副主任徐俊其昨天说：&实行手机实名制后，人们可能不太情愿用身份证注册手机号，所以通信运营商会暂时面临用户减少和短信用户减少的问题。&

I don't believe in make-believe!

我不相信这些虚构的故事。