查询词典 permutation

The Hamiltonian operator of system of Heisenberg chain acts on the complete basis vectors produced with permutation group to form energy matrix.

计算结果：(1)位型[4，2]的第I类自旋交换在格点单、双占据及格点单、双占据共存三种情况时所得矩阵只在对称填充时相同，别况均不同。

The secret hash digital signature is a new siganture method that combines the ideas of RSA public-key algorithm, MD5 one-way hash function and permutation code at the same time.

保密散列数字签名算法利用RSA公钥密码体制的原理、MD5单向散列函数和排列码加密的思想，构造了一种能够快速实现数据保密、数字签名的签名方案。

It is proved that a wrpp semigroup satisfies a permutation identity if and only if it satisfies the identity xyzw= xzyw.

证明了wrpp半群满足置换恒等式当且仅当它满足恒等式xyzw=xzyw。

Further,we findalso that groups in Saito's results may be replaced by right groups;secondly we mainly investigatethe semidirect products and wreath products of P-regular semigroups;Finally we shallcharacterize the sandwich matrice of completely simple P-regular semigroups,and investigate thestructure of P-regular semigroup whose C-set satisfies a permutation identity.

在这一章中，首先指出Saito在研究半群的半直积和圈积时，对S的限制是不必要的，证明了Saito结果中群可换为右群；其次，研究P—正则半群的半直积和圈积；最后刻划了完全单P—正则半群的夹心阵和C—集满足置换恒等式的P—正则半群的结构。

Incommensurable still different permutation attribute, but for the demand to me, already enough.

还不能比较不同排列的属性，但对于我的需求来说，已经足够了。

Permutation and Combination, Independent events, Concepts of Probability.

教学目的：通过学习掌握概率的基本概念和计算法则，排列组合的区别及应用等。

In essence, stream cipher is such a pseudorandom generator that its chaos sequence of output and random sequence are computational indistinguishability; and the aim in designing block cipher materially is to design a pseudorandom permutation which is computationally indistinguishable from random permutations.

实际上，序列密码本质上就是一个伪随机生成器G，其输出的乱数序列和随机序列是计算不可分辨的；而分组密码的设计目标实质上就是设计一个伪随机置换，它与随机置换是计算不可分辨的。

Then the affine permutation in the process of S-box construction was combined with an inverse mapping in order to construct all kinds of S-boxes, such as 8×8、4×4、6×6 and m×n S-boxes, and the avalanche probabilities of these S-boxes were analyzed in the light of variance, and some rules were obtained from the analysis, which will help to find safer S-boxes.

然后通过将有限域上的乘法逆元与一个可逆仿射变换相结合构造了一批8×8、6×6和4×4的S盒，并从方差的角度分析了S盒的雪崩概率，同时总结出部分结论。

By using in a sequence the eigen-decomposition,a permutation,the inverse discrete Fourier transformand a truncation on the matrix,an exact and explicit parametrization formula for Loop subdivision surfaces is proposed.

利用控制网格拓扑结构的对称性，通过将奇异点周围1-环和2-环的控制顶点进行离散Fourier变换得到分块对角阵，将其进行特征分解及排序之后，再通过离散Fourier逆变换和截断等操作得到细分矩阵的高次幂的表达式，从而得到Loop 细分曲面新的精确参数化公式

This article studies the Microsoft Game-Freecell. It applies the Pigeonhole Principle, Ramsey Principle, Bipartite Graphs Principle to approve the maximum available space to complete the game successfully under random sorting. It introduces the specific algorithms that can archive the goal successfully under the game rules. It also presents the calculation of permutation under this algorithm by adopting the Mobius Inversion and Inclusion-Exclusion principle.

本文从Microsoft Windows 中的空档接龙游戏出发，依据组合数学中的鸽巢原理、Ramsey定理、二分图理论等，部分证明了随机生成排列的情况下，完成空档接龙游戏目标的可用空间极值；提出了一种遵守游戏规则、又可以保证完成游戏目标的生成排列算法，并利用莫比乌斯反演、容斥原理计算该生成排列算法的生成排列数。

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