On Semidirect Product of Discrete Groups and Crossed Product of von Neumann Algebras;
关于离散群的半直积与von Neumann代数的交叉积
First,we consider the semidirect products of inverse semigroups and define a new product——the double-semidirect product(It is a set M={(a,s)∈S×T:(a,s)(b,t)=(ab,sbta)},where sb=sβ(b),ta=tα(a)).
首先给出了逆半群的半直积,定义了一种新的积——双半直积(它由集合M={(a,s)∈S×T:(a,s)(b,t)=(ab,sbta)}构成,其中sb=sβ(b),ta=tα(a))。
Letαbe an action of the semi-direct product G ■_σH of countably discrete groups G and H on von Neumann algebra M.
设α是可数离散群G和H的半直积G■_σH在冯·诺依曼代数M上的作用,则β_h=α_((e,h))AdU_h定义了群H在冯·诺依曼代数交叉积M■_αG上的作用β。
The characteristic of the precise structure of the auto-morphism groups of groups of order p5,which have cyclic and maximal subgroups,is analyzed by the method of holomorph and semi-direct product.
设G是p5阶有限群,对于群G具有一个循环极大子群,给出了它们所有互不同构的类型;利用半直积和全形的概念,得到了具有循环极大子群的p5阶群的自同构群的构造,同时也验证了具有这样性质的群是LA-群。
λ-semidirect products of regular orthodox semigroups;
正则纯整半群的λ-半直积(英文)
This paper proves that a λ-semidirect product of the semilattices and primitive inverse semigroups is a 0-categorical and E~*-unitary inverse semigroups.
证明了一个半格与本原逆半群的λ-半直积是一个0-范畴E -酉逆半群,并给出它的同余商的一个同构性质。
Semidirect Products and Wreath Products of Weakly P-eventually Regular Semigroups;
弱P-毕竟正则半群的半直积和圈积
The Bi-Ideals, Semidirect Products and Other Properties on Some Semigroups;
某些半群的双理想半直积及其它研究
The E~*-unitarity for λ-semidirect Productsof Semilatties and Primitive Inverse Semigroups;
半格与本原逆半群的λ-半直积的E~*-酉性
On Semidirect Product of Discrete Groups and Crossed Product of von Neumann Algebras;
关于离散群的半直积与von Neumann代数的交叉积
Lower and Upper Orientable Strong Radius and Diameter of Cartesian Product of Paths
路和路的笛卡尔积的最小和最大定向强半径和强直径(英文)
For pipes in hard or half hard conditions total bend should not be more than the product of tolerance permeter by length of the tube.
直条供应的硬管和半硬管总弯曲度应不超过每米许可弯曲度与总长度（）乘积。
The integration corresponds to adding successive shells to the core until the core has radius R.
这个积分相当于把一系列球壳加到球核上，直到球核的半径等于R时为止。
The Approximation of the Markov Integrated Semigroup
Markov积分半群的逼近(英文)
On Two Perturbation Results for Integrated Semigroups and Integrated C-semigroups;
关于积分半群与积分C-半群的扰动的两个结果
He spent hours gazing into the distance.
他半天一直凝视着远方.
vertical metal oxide semiconductor
垂直金属氧化物半导体
It was half past eight when Simpson at last rolled up.
直到8点半辛普森才到。
roller escapement
滚子式半直进擒纵机构
the operating radius of a helicopter.
直升飞机的作战半径
He kept count of the meteors till midnight.
他数流星一直数到半夜。
The heat did not relax until midnight.
直到半夜,炎热才缓解。
cleave a block of wood asunder [in two]
把一块木头直劈成两半
Semidirectional Interchange
半直接式立体交叉型