关于左限制半群上同余的注记  

A Note on Congruences of Left Restriction Semigroups

作　　者：刘海军 宋杰 LIU Haijun;SONG Jie(School of Mathematics&Statistics,Shaoguan University,Shaoguan 512005,Guangdong,China)

机构地区：[1]韶关学院数学与统计学院,广东韶关512005

出　　处：《韶关学院学报》2024年第12期1-4,共4页Journal of Shaoguan University

基　　金：韶关市科技局支持科研工作者项目(230324098034834);韶关学院科研项目(SZ2023KJ09);韶关学院博士科研启动项目(9900064603)。

摘　　要：给出左限制半群的投射分离和投射纯(2,1)-同余的若干等价描述.研究左限制半群上投射核(迹)相同的(2,1)-同余与投射纯(分离)(2,1)-同余之间的关系,并给出刻画定理.The main aim is to present some equivalent descriptions about the projection-separating(pure)(2,1)-congruences and study the relations between the(2,1)-congruences having the same projection kernel(trace)and the projection-pure(separating)(2,1)-congruences and on left restriction semigroups.And the corresponding characterization theorems are provided.

关 键 词：左限制半群 投射核(迹) 投射分离(纯) (2 1)-同余 

分 类 号：O152.7[理学—数学]