查询词典 transitive permutation group

Current, regular to searching the permutation of the result acknowledge spends search user inferior, the permutation that the user of close 2/3 expresses not to know to search a result is regular.

目前，搜索用户对搜索结果的排列规则认知度较低，近2/3的用户表示不知道搜索结果的排列规则。

The investigations in this thesis focus on several aspects as follows: We investigate the method that how to produce permutation matrix by using chaotic map, and get the method of image permutation based on chaotic map. This method can make original image to unorderly image to protect the true content of image. We investigate gray level mix function, and put forward a gray level mix function based on chaotic map. Because this function has chaotic characteristics, the image dealed with this function has very uniform histogram. Aiming at the contradiction between error robust and security on image encryption, we put forward a kind of gray level mix function including diffusion mechanism.

本文的研究工作主要集中在以下几方面：研究了如何利用混沌映射产生置乱矩阵的方法，给出了基于混沌的数字图像置乱方法，该方法能够将原始图像变成面目全非的杂乱图像，从而保护了数字图像的真实内容；研究了灰级混合函数，提出了基于混沌的灰级混合函数，由于该函数具有混沌特性，所以经过该函数处理后的图像具有非常均衡的灰级直方图；针对图像加密的错误鲁棒性与安全性之间的矛盾，提出了一种含有扩散机制的灰级混合函数。

If this is the smallest permutation, then it reorders the sequence to be the largest permutation and returns false.

如果这是最小的排列，则它将序列重新排列为最大排列，并返回 false。

In this paper, we deal with the complete extension of a fuzzy relation and obtain the following main conclusion. Every reflexive,*-antisymmetric and *-transitive fuzzy relation can be extended to a complete reflexive,*-antisymmetric and *-transitive fuzzy relation, namely, every partial order can be extended to a linear order.

文章研究了一个模糊关系的完全扩张问题，主要结果为：一个自反的、*-反对称的*、-传递的模糊关系可以扩张成为一个完全的、自反的、*-反对称的、*-传递的模糊关系，即任何一个偏序都可以扩张成一个线性序。

While the transitive closure of fuzzy matrix is closely linked with the transitive closure in common sets.

而模糊矩阵传递闭包与普通集合论中传递闭包是有密切联系的。

For a limited relationship between a given set of transitive closure, by entering the relationship between a given matrix, and its transitive closure.

详细说明：求有限集上给定关系的传递闭包，通过输入给定关系的关系矩阵，求其传递闭包。可用二值矩阵描述关系。

This observation strenghen to some extent the corresponding result obtained by Watkins, which said that k-regular vertex transitive graph G has a factor with components isomorphic to a vertex transitive graphs if G is not k connected.

此结果在某种程度上加强了Watkins的相应命题：如果κ正则点可迁图G不是κ连通的，那么G有一个因子，它的每一个分支都同构于同一个点可迁图。

Content: Transitive inference characterized by two or more than two judgment with transitive relation, it is an indirect relation reasoning.

传递性推理是由两个或两个以上的具有传递性关系的判断构成的推理，是一种间接关系的推理。

A solution for signing any directed transitive binary relation is presented by combining the proposed scheme with the undirected transitive signature schemes available.

1引言传递签名是由Micali和Rivest[1]在2002年首先提出的，主要用于对具有传递性的二元关系进行高效签名，这在军事、政治和经济等领域都有重要应用。

In the paper, the kinds of reachability notions are defined and charactered firstly in their matrices and graphs. By the discussion of the matrix standard form and its transitive closure, the relation among the maximum partial reachability sets, the standard form of the matrix and its transitive closure are posted and the network partial reachability is based. The standard form provides methods for the improvement of the network reachability.

本文首先定义了诸可达概念及其等价刻画，通过布尔阵标准型及其传递闭包的讨论，揭示了网络极大局部可达集与矩阵标准型、传递闭包的关系，建立了网络局部可达的框架结构，并通过标准型为改善网络可达性提供方法。

These rules reflect some inherent feature of self and nonself, and they are the basic detection criterion of GECISM.

这些规则反映了"自我"和"非我"的内在特征，是GECISM进行"非我"检测的判据。

Until today, the media from China and the outside world still uses the term "Post 89". Regardless to whether it is for commercial gimmick or convenience, everybody still remember "Post 89", a term which carries a strong Cantonese accent.

时至今日，国内外艺术媒体还是在沿用&后八九&这个称谓，不管当初是为了商业噱头还是容易上口好记，反正大家现在是记住了&后八九&这个广东口音很重的词。