By the relationγ, the aim of this paper is to study a special quasi-abundant semigroup-the perfect right quasi-abundant semigroup, and verify the structural theorem.
利用关系γ,主要研究了一类拟富足半群-完备右拟富足半群,得出这类半群的结构定理。
The necessary and sufficient conditions are determined for the semidirect products and the wreath products of two semigroups to be a right group from another definition of right group.
从右群的另一定义出发给出了两个半群的半直积和圈积是右群的充分必要条件,并讨论了右群的半直积的最小群同余和最大幂等分离同余。
In this paper we offer the necessary and sufficient conditions for the semidireclproduct of two semigroups to be a right group,and present that,whenS×_αT is a right group.
给出了两个半群的半直积为右群的充分必要条件，且证明了当Ｓ×＿αＴ是右群时，Ｅ（Ｔ）。
In this paper,the authors chiefly study Cayley graphs of strong semilattices of right groups and obtain some results for structures and properties of these graphs.
研究右群的强半格的Cayley图,刻画了这类图的结构和性质。