变分方程

The atmospheric mean horizonal convergence in two examples is calculated using the two modified EVAD methods,the convergence obtained is then adjusted with the variational method,and the vertical velocity is computed in ter...

根据这2种改善的EVAD方法，分别计算出大气平均散度，再用变分法对散度值进行调整，然后利用连续方程，计算大气的垂直速度，并对各种结果进行了比较分析。

The equation was solved on the basis of the theory of forced damped vibration and variation principle.

再由受迫阻尼振动原理和变分原理推导出耳膜振动方程。

In cylindrical coordinate system,a modified mixed variational principle with viscous damping force is established and the corresponding state-vector equation is derived.

建立了圆柱坐标系下包含粘滞阻尼力的修正后的Hellinger-Reissner变分原理，推导了对应的状态向量方程。

In this paper,we consider necessary conditions for optional control of second order ordinary differential equation with coefficient control and two point boundary value,thenobtain the inequality of variation.

在这篇文章中，我们考虑控制出现在最高阶系数上二阶常微分方程系统最优控制满足的必要条件，得到了最优控制满足的变分不等式。

Lions and some other variational methods, we prove the existence of nontrivial solutions of the equations under the Dirichlet boundary condition.

ions的集中紧性原理等变分方法，得到了方程在Dirichlet边值条件下的非平凡解的存在性。

We prove the solvability of the first eigenvalue problem for a class of quasilinear elliptic equations including distance potential with homogeneous Dirichlet boundary condition.

变分原理证明了一类含距离位势的拟线性椭圆方程齐次Dirichlet边界条件下第一特征值问题的可解性。

Keywords: meshless method;adaptive algorithm;elliptic equation; variational inequality.

中文关键词：无网格方法；自适应算法；椭圆型方程；变分不等式

In part V using Lions' second Concentrate Compactness Lemma andvariational method,we prove the existence of minimal positive solutionof a class of quasilinear elliptic obstacle problems〓in space〓.

第五部分使用Lions的集中紧性原理和变分方法，我们证明了一类非齐次拟线性椭圆型方程对应的障碍问题〓在〓中极小正解的存在性。

The solving equations of numerical manifold method used to be formulated by minimum potential energy principle.

以往的数值流形方法都是以最小势能原理或变分原理为基础来建立求解方程的。

The differential equations of equilibrium and natural boundary conditions are given.

在曲梁精确的翘曲位移基础上，根据变分原理，提出了对任意开口薄壁截面圆弧曲梁通用的线性理论，给出平衡微分方程和相应的边界条件。

I will endeavour to find you some assistance.

我尽力帮你找人帮忙。

At first I only know bruck is the idol of American younglings, afterwards I returned back to Taiwan ,even in Beijing last year ,I saw her poster everywhere, I was so surprised at her charm.

起初我只晓得布鲁克雷德丝是美国少男少女崇拜的偶像，后来回台湾，甚至去年在北京，居然也四处看见她的海报，才惊讶她的魅力之大。