Islam BRAJA; Department of Mathematics, Faculty of Natural Sciences, University "Aleksander Xhuvani"
(International Symposium on Computing in Informatics and Mathematics, 2013-07-15)
In this paper we will prove some theorems that discover the structure ofminimal quasi-ideals in -semigroups without zero. The main result is these are -subgroups. We will prove also that this structure is not true for ...