Left Semiregular−U −liberal Semigroups
Changchun Teng, Chen Xiu-mei · 2010
In this paper, we introduce the left semiregular−U−liberal semi-groups which are orthodox U−liberal semigroups whose set of projec-tions are left semiregular bands. Some structure theorems are obtained. At last, we describe the isomorphisms between two left semiregular −U−liberal semigroups.