Osman HYSA; Head of Mathematics Department at "Aleksander Moisiu" University; Edmond PİSHA; Mathematics Department at "Natural Science Faculty" of Tirana University
(International Symposium on Computing in Informatics and Mathematics, 2013-07-15)
It's known that the set of idempotents of the semigroup, plays an important role forthe structure of this semigroup. Specially, in the regular semigroups, an importantrole plays presence of the medial idempotent and normal ...