关于具有$Q$-逆断面的正则半群的同余格

In this paper, a complete congruence on the congruence lattice of regular semigroups with Q-inverse transversals is analysed. The classes of this complete congruence which are intervals are discussed and their least and greatest elements are presented clearly.     

$*$-双单型$A \omega^2$-半群的同构定理

在本文中,我们研究了满足条件$D^*=D(~)$的*-双单型$A\omega^2$-半群的同构,给出了它们之间的同构定理.     

Regular Bisimple ω2-semigroups

The regular semigroups S with an idempotent set Es = {e0,e1,…,en,…} such that e0 ＞ e1 ＞…＞ en ＞… is called a regular ω-semigroup. In [5] Reilly determined the structure of a regular bisimple ω-semigroup as BR(G,θ),which is the classical Bruck-Reilly extension of a group G.     

正则双单ω~2-半群

本文研究了幂等元的ω~2-链及广义Bruck-Reilly扩张.利用扩张的方法,获得了正则双单ω~2-半群的结构定理.