在数学中,特别是叫做群论的抽象代数领域中,半直积(semidirect product)是从其中一个是正规子群的两个子群形成一个群的特定方法。半直积是直积的推广。半直积是作为集合的笛卡尔积,但带有特定的乘法运算。
Then we establish the structure of such ordered semigroups in terms of the cartesian ordered semidirect product and the lexicographic ordered semidirect product.
然后,我们利用卡氏序半直积和字典序半直积建立了这类半群的结构。
参考来源 - 序半群的若干研究The structure of Auto-morphism groups of some special p -groups is analysised by the method of holomorph and semi-direct product.
利用全形及半直积的方法给出了一类特殊P-群自同构群的结构。
参考来源 - 若干LA·2,447,543篇论文数据,部分数据来源于NoteExpress
在去掉幺元的情况下,讨论了完全单半群的半直积问题。
The author discusses the problem of the semidirect products of completely simple semigroups without identity element.
并运用双重半直积给出弱LR 好拟适当半群的结构定理。
Then we give a structure theorem of weak LR-good quasi-adequate semigroups by using the tool of dual semidirect product.
给出了两个半群的半直积和圈积为矩形拟正则半群和矩形群的充要条件。
This paper gives necessary and sufficient conditions for the Semidirect and Wreath Products of two semigroups to be Rectangular Quasi-Regular Semigroups (Rectangular Groups).
应用推荐