正则置换

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。

Let A be a nonsingular nth-order real matrix, then cond_p =||A||_p||A~(-1)||_p =1(p= 1,∞), if and only if A = cpσ, where c is a positive constant, p is a permutation matrix, or is a diagonal mat...

设A为n阶非异实矩阵，则矩阵A的求逆p-范数条件数等于1的充要条件为A=cpσ，其中c为正常数，σ是置换阵，其对角元都等于+1或-1。

ALC Advisors' structuring of two ongoing stock swap deals involving a mainland seller and an overseas buyer looking to create a fully owned foreign enterprise has met with significant trouble, Mr Colling said.

Colling 说，美智荐咨询正在处理两桩股票置换的交易，其中一位客户是大陆卖主，而另一位则是希望创建一家全资企业的海外买家，这两桩交易正面临不小的困难。

A graph F is said to be semisymmetric if it is regular and Aut acts transitively on its edge set but not on its vertex set.

称X为边传递图，如果Aut_E在E上是传递置换群，边传递而点不传递的正则图叫做半对称图。

For solving the singular linear equations,we present the iterative methods based on proper splittings and give the convergence analysis.

在奇异线性方程组的求解方法中，我们提出了基于正则分裂的二级迭代法并给出收敛分析；在论文的第三章我们对奇异的结构化矩阵的置换秩进行了研究，得到了一些结论并给出了应用。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。