特征值

This paper mainly im- proved the secant method t on eigenvalue of transfer matrix.

将求传递矩阵特征值的割线法进行改进，使得计算结果的误差变得较小，计算结果的可靠性增强。

For compact hypersurfaces and highcodimension compact submanifolds initial data respectively, we prove that the flow hasa smooth solution for all time under almost optimal conditions. Those conditions arethat the second fundamental form on the initial submanifolds is not too large, the exter-nal force field, with its any order derivatives, is bounded, and the field is convex with itseigenvalues satisfying a pinch inequality.

我们分别对紧超曲面初值和高余维紧子流形初值证明了当初始曲率比较小，并且外力场除了要各阶导数一致有界外，还要满足凸性条件以及特征值的一个pinch条件时，这种热流的光滑解长时间存在。

Eigenvalue matrix for resolving sparse polynomial equations is constructed by deploying well arranged basis in semigroup algebra k.

本文利用半群代数k中良序基，构造了求稀疏多项式方程组解的特征值矩阵，并给出了可以构造方阵的条件。

The method of separation of variables is used to solve the conjugate couples of eigenvalues and eigenvectors of the system, and the condition of symplectic, conjugated-type of normalization is proposed.

用分离变量法求解系统的各阶共轭特征值对和特征函数对，并提出特征函数的辛共轭正交归一关系。

Within a lateral transection profile that traversing a auriferous quartz vein, the contents of U and Th decrease as the K-feldsparthization and silicification increase, while the V1 and V2 have a similar variation trend with the exception of the samples near the auriferous vein.

在穿脉剖面上，随着钾、硅化蚀变程度的增加，U、Th含量降低，铅同位素矢量特征值V1、V2值随蚀变程度增加有降低的趋势，但近矿脉样品由于受矿化影响而不同于蚀变围岩。

The steady-state solution is known to be the positive eigenfuction corresponding to the simple eigenvalue 0 of the system operator.

于是作为半群拟紧性和不可约性的直接结果，得到了系统的时间依赖解指数收敛到其静态解，并且该静态解即为系统算子简单特征值0对应的正的特征向量。

It is shown that finally this problem turns to the estimation of the real joint eigenvalues of three real matrices and solve the joint eigenvalue estimation by a recently proposed simultaneous diagonalization algorithm.

通过同时对角化算法估计矩阵的联合特征值，获得了参数联合估计的强可辨识性，即允许信号参数在任何一维任意重复，并可以使估计参数实现自动配对。

In this thesis, the methods for solving eigenvalue problems and conventional reanalysis methods are studied firstly. Then, a new reanalysis method for real modal reanalysis of structures subjected to topological modification with added degrees of freedom is presented. This method is composed of the single step perturbation method and the Rayleigh-quotient iteration. The numerical examples show that this reanalysis method is very effective and high-quality.

本文首先在对常规的特征值数值求解方法和重分析方法研究的基础上，针对实模态的自由度增加的结构拓扑修改重分析，提出了一种新方法，该方法由于结合了单步摄动法和瑞利商逆迭代法两者的优点，应当是一种比较理想的重分析方法，算例的数值结果也有力的验证了该方法确实是一种高精度、十分有效的实模态重分析方法。

In this paper we classify these channels into two categories, one model of each category is selected out, respectively, and singular value distribution, MIMO channel capacity and singular value compare under different correlation conditions are completed.

以生成方式是否具有物理意义为标准对现有的信道模型进行了分类，介绍了其不同的应用领域，并且选取其中有代表性的模型，给出了他们在同一环境下生成信道矩阵的容量曲线与特征值分布的比较。

The method is applied to evaluating the comprehensive safety of the high rock slope on the left spandrel groove of Jinping I hydropower project. It is obtained that the grade eigenvalue is 4.001 and safety grade is IV which means that the comprehensive safety grade of the high rock slope is between hyper-stability and stability.

将该方法应用于锦屏一级水电站左肩槽岩石高边坡的整体安全评价，经计算得出该边坡整体安全综合评价的级别特征值为4.001，安全等级为IV级，介于稳定与极稳定之间。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。