查询词典 permutation

It is proved that two matrix tensor operation can be exchange at permuted similar and this kind permutation matrix is portrayed.

分析了分块矩阵张量积的相关数学特性，证明了在置换相抵意义下两个矩阵的张量积运算可以交换，特别刻画了这类置换矩阵，并由此证明了在置换相抵条件下分块矩阵可以分块地进行张量积运算。

This chapter clarifies the nested relationship between the matrix family of unitary, orthogonal, Givens, Householder, permutation, and row or column symmetric matrices. A precise correspondence of the singular values and singular vectors between the unitary-symmetric matrix and its mother matrix is derived and proved (hence a fast algorithm of singular value decomposition for unitary-symmetric matrix is straightforwardly obtained), and the corresponding perturbation bound is provided.

该章揭示了酉对称矩阵、正交对称矩阵、 Givens 对称矩阵、 Householder 对称矩阵、置换对称矩阵和行对称矩阵之间的逐级包含关系；推导并证明了，酉对称矩阵的奇异值和奇异向量与母矩阵的奇异值和奇异向量之间的定量关系，据此可得酉对称矩阵奇异值分解的快速算法；给出并证明了摄动矩阵的摄动界。

In this note the author showed that if s is nonnegative integer and A∈B n,n+s, then |R|=2 n if and only if A contains a submatrix which is permutation equivalent to the unit matrix of order n.

作者证明：如果s是一个非负整数且A ∈Bn ，n+s，那么｜R ｜=2 n 当且仅当A含有置换等价于n阶单位矩阵的一个子阵

The block cipher with a substitution permutation network is the best known and widely used block cipher system.

包含代替置换网络的分组密码是一种广泛使用的分组密码系统。

The image encryption is performed by SCAN-based permutation of pixels and a substitution rule,which together form an iterated product cipher.

通过对扫描模式的像素位置的改变和灰度值的替代相结合的方式，来共同完成图像的加密算法。

By this method, the number of Young's permutation operators is reduced and the new Young tableau method of obtaining equivalent-electron Young basis is represented.

这些极大的简化了杨盘置换算符的个数，给出了确定等价电子杨盘基的新杨盘方法。

In chapter two of this paper, we introduce the transitivity, which is an important definition in the 1-permutation group.

在第三章，我们介绍了格序置换群的凸同余，并研究了可迁格序置换群的凸同余与块所决定的可迁格序置换群的分类；讨论了可迁格序置换群的凸同余和块的性质以及它们之间的关系。

The results indicate that the permutation and combination of kerosene and decyl alcohol extracting nickel citrate from wastewater is the best.

结果表明，煤油与癸醇组合对废水中柠檬酸的镍萃取效果最佳。

In the begining the conference on the face appears meshy permutation pigment is ad cool-headed spot, the color of spot begins to show dust-colour, develop again later black Brown, and return companion to have spend blood capillary dilate gently.

开始时脸上会出现网状排列的色素沉着斑，斑的颜色开始呈灰褐色，后来又发展成黑褐色，而且还伴有轻度毛细血管扩张。

To avoid the permutable model of protein, the 43 Table of Triplet Codes Given by F.H.C.Crick in 1969 is in fact that one group of permutations versus the permutation elements in another group of permutations , which is a typical wrong application and a wrong calculation.

Crick 43 遗传密码表回避蛋白质分子的排列组合模型问题，根据氨基酸种类数20 和 DNA 上碱基种类数 4进行对四元素选三元素的排列组合计算建立& DNA ～蛋白质&间的一一对应，本质上是排列组合应用中一组排列组合对应另一组排列组合的具体元素。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了