查询词典 eigenvalue problem

By discussing the eigenvalue relation of the coefficient ,λ and η in Mathieu equation, means determining the boundary lines between the steady and unsteady solution areas of Mathieu equation, the criterion equation of the problem is presented here.

通过具体算例，给出了四边固定载流矩形薄板的磁弹性动力失稳临界状态与相关参量之间的关系曲线，并对计算结果及其变化规律进行了分析讨论。

In this paper, the problems of correlation characterizations of complex symmetric matrices are deduced and analyzed, which include the eigenvalue, the condition number and the problem of diagonalization.

本论文分析和阐述了复对称矩阵在相关方面的性质和问题，包括特征值、条件数和对角化等问题。

In this paper we study the existence and multiplicity of solutions for the semilinear elliptic Dirichlet problem at the first eigenvalue.

本篇文章主要研究了在一阶共振的半线性椭圆Dirichlet问题解的存在性和多解性，得到了几个解的存在性定理和一个多解性定理。

In order to solve the problem of repeated eigenvalue in structures, the sensitivity analysis for repeated eigenvalues is studied.

为了适应实际结构中不可避免的会出现重特征值情况，研究了具有重特征值情形的灵敏度分析问题。

The solution of spherical function is given in the paper,and it is applied reasonably in the problem of eigenvalue of angular momentum square operator.

本文对球函数方程进行了求解，并将球函数方程的解合理地应用于角动量平方算符的本征值问题中。

FE analysis ; eigenvalue ; inverse problem ; artificial neural network ; genetic algorithm

有限元分析；特征值；反问题；神经网络；遗传算法

By using the secondary unit matrix, the inverse problem of secondary eigenvalue of anti-skew-symmetric is solved.

本文在对问题的理论推导中，充分利用了次单位矩阵的作用，提供了将次反对称矩阵的逆次特征值问题转为反对称矩阵的逆特征值问题来解决的新思路。

We give Some necessary and sufficient conditions on the existance of solutions to partial eigenvalue assignment problem, and discuss some measures of robustness of the closed-loop system.

求解这类问题的困难主要在于： 1。如何给出二次系统的部分极点配置问题的解的参数表达式？

Using the Genetic Algorithm to solve a difficult problem –searching the eigenvalue and the eigenvector of a matrix.

对正矩阵和正对称矩阵的谱半径的下界作了修正。(2)应用遗传算法解决矩阵特征值和特征向量问题。

Firstly, the author establish the functions of stability on the basis of the spline function method ,according to the theory of geometrical nonlinear and the theory of stability, educe the stability equation of structure based on variational principle, then carry through the flexuosity analysis of CFST arch.The big distortion geometrical nonlinear was considered by the stability equation,the author simplified the problem of geometrical nonlinear through ignored quadratic term and reserve the simple term, at last boiled down to solve the linear stability equation of eigenvalue .

利用样条函数方法、根据几何非线性变形理论和结构稳定性理论，先建立起结构稳定的泛函，再由变分原理导出结构的稳定方程，进行钢管混凝土拱屈曲分析；本文所建立的稳定方程考虑了几何非线性的大变形效应，通过忽略几何非线性的二次项，保留一次项，将几何非线性问题简化，最后归结为求解线性稳定问题的特征值稳定方程，建立了结构非线性静力稳定性问题的新算法及失稳类型判别准则。

If you are unfortunate enough to the lovelorn, please tell me, I will help you out, really, please contact me!

如果你不幸失恋了，请告诉我，我会帮助你摆脱困境，真的，请联系我啦！

China's plan to cut energy intensity by 20 percent and pollutant discharges by 10 percent between 2006 and 2010 is a case in point.

中国计划在2006年到2010间降低20%的能源强度和减少10%的主要污染物排放，就是一个这样的例子。