查询词典 conformable matrices

B Consider the Hamiltonian , where n is a unit vector and are Pauli matrices (α= x, y, z).

考虑哈密顿量，其中 n 是单位向量及为泡利矩阵(α= x， y， z)。

Aim The Hamiltonian is transformed from Pauli matrices to Hubbard operators.

目的把用Pauli矩阵表示的哈密顿量转化成用Hubbard算符表示。

This gives birth to Schur complement and Perron complement, which now become two important tools in studying matrices.

矩阵Schur补，Perron补的概念应运而生，成为研究矩阵不可或缺的重要工具。

In [2], Kirkland characterizes the limit points for algebraic connectivity of trees in terms of Perron values of certain positive matrices, and finds the four largest elements of limit points for algebraic connectivity of trees together with the corresponding branches.

Kirkland在文献[2]中用正矩阵Perron值的方法刻划了树的代数连通度的极限点，并给出了树的代数连通度的前四大值和达到这些数值相应的分支。

Utilizequadratic form and Perron value of bottleneck matrices, we study how the algebraic connectivityof a weighted tree changes under shifting its branches and changing its edge s weights and obtainmore entire information about algebrai.

利用代数连通度的二次型形式和瓶颈矩阵的Perron值，我们研究了当迁移或改变分支和变动一些边的权重时树的代数连通度的变化，得到了比过去更多的关于赋权树的代数连通度的结论。

Nonnegative Matrices ; Spectral ; Perron Root ; Estimation ; Algorithm ; Application

吉林大学；吕洪斌非负矩阵；谱； Perron根；估计；算法；应用

A static interval optimization method for structures was proposed. The matrices of structures with interval parameters were given. Combining the interval extension of function with the perturbation theory of static analysis, the method for interval static analysis was derived.

提出了一种在位移约束下结构静力区间优化方法，给出了区间参数结构矩阵，将结构静力分析的摄动理论与区间函数扩张定理相结合，推导了结构静力分析的区间方法。

The matrix decomposition plays very important role in matrix theory,especially in the study of perturbation analysis of matrices.

矩阵分解在矩阵理论中有着极其重要的作用，尤其在矩阵的扰动理论研究中。

A fault calculation method to determine faults with the conversion matrices in phase coordinates, to determine multiple faults with equal time and elements with unsymmetrical parameters is developed with the sequence network decoupled from symmetrical components coordinates.

利用对称分量变换将相分量坐标下的故障处理方法和计算公式转换到对称分量坐标下，提出了完全使用对称分量坐标系的多态对称分量法。并利用反映网络等效变换的方程降阶方法进一步提高计算效率。

Morevoer, on basis of the weighted polar decomposition, the simultaneous weighted polar decomposition of matrices is also defined and studied.

在对加权极分解研究的基础上，我们定义并讨论了矩阵的同时加权极分解。

There are different types of personal loans available.

有许多不同类型的个人贷款优惠。

The above mentioned teaching model of spiral rising can be used to avoid rigidness in teaching.

上述螺旋式上升的教学模式，可以避免教学形成模式後的僵化现象。