摘要
文 [1 ]中 Petrich M定义了同余的核与迹 ,用它们描述了逆半群上的同余 ,Gomes在文 [2 ]中定义了同余的核与超迹并描述了正则半群上的 R-幂单 ( R- unipo-tent)同余 ,本文利用同余的核与超迹描述正则半群上的另一类重要同余 ,即矩形群同余 .
Petrich,M.defined kernels and traces of congruences and described the congruences on inverse semigroups by means of them .Gomes defined kernels and hypertraces of congruences, and described the R unipotent congruences on regular semigroup by means of their kernels and hyper traces .This paper describes another kind of important congruences on a regular semigroup,i,e.rectangular group congruences.
出处
《纯粹数学与应用数学》
CSCD
2002年第2期161-164,共4页
Pure and Applied Mathematics
基金
山东省自然科学基金资助项目 (Y99A0 3)
