查询词典 permutation

The symmetry group is the permutation group acting to exchange particles of the same type.

对称组是置换群代理交换颗粒同一类型。

This paper studies knots from a group theory point of view. A new method has been constructed that transforms a knot group to a permutation group, so as to better understand the nature of knots.

本文是从群的角度对纽结进行研究，构造出了一种从纽结群到置换群的表示，可以更好的反映纽结的性质。

In response to the current debates on the concept of ethnic group or ethnicity, the author made a review of the permutation of ethnic group and the concepts to which it was related in the West.

对族群以及与它相关的一些概念在西方的变化作了一个简要追溯。

This observation suggests that the relationship between classical and quantum systems is not so clear as it is often portrayed and that the permutation group could also be a part of the same universal symmetry as gauge invariance.

观测表明，这之间的关系经典和量子系统就不那么明确，因为它往往是描述，而置换群也可能是出于同样的普遍的对称性作为规范不变性。

Knot Group;Permutation Group;Representation Of a Group;Computer Algorithm

纽结群；置换群；共轭类；群表示；计算机算法

For the wavelength assignment in all-optical network, our research include:(1) For the wavelength assignment on ring optical networks with fixed wavelength converters, we use permutation group to study the ability of wavelength converters, and design an assignment algorithm, which can give a good assignment scheme in any general case.

其中，在全光网的波长分配方面，主要包括：（1）对于环形光网中固定波长转换器的情况，采用置换群来刻画转换器的能力，在此基础上提出了一个对于一般情况能够给出较好波长分配方案的算法。

According to the property that all states of a certain cellular automata can build a permutation group, we can design block cipher based on this property.5. One simple cellular automata and one simple linear feedback shift register have been implemented.

根据有些细胞自动机的所有状态可以构成一个循环群这一特点，指出了利用细胞自动机构造分组密码的方式。

By means of analyzing the equivalence relation of reversible gate logic network to permutation group,the reversible gate network cascade was converted into the cycle of symmetric group.

可逆逻辑综合是一个新兴的研究领域，它是量子信息技术和低功耗电路研究的重要组成部分[1]，在集成电路技术、纳米技术等领域也有着重要应用[2~4]。

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。

In Chapter 3,we classify a binary-coded individual space equivalently withthe help of the ideals of Boolean algebra and analyze the search capabilitiesof a new kind of algebraic crossover operator in these equivalence classes,thenprovide the algebraic representation of a type of genetic algorithms by usingthe permutation group,therefore we can derive a lot of new forms of geneticalgorithms.

第三章运用Boole代数的理想将二进制编码的个体空间进行等价分类，分析了一类代数杂交算子在这些等价类上的搜索能力；然后利用置换群给出一类遗传算法的代数表示，由此导出多种新形式的遗传算法，并给出其中两类算法形式的收敛性结果。

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