Structure and endomorphisms of a strong semilattice of left groups
摘要
In this paper we first characterize the structure of a strong semilattice of left groups. We then prove an Isomorphism Theorem on strong semilattices of left zero semigroups and using this we prove the Isomorphism Theorem on strong semilattices of left groups. Finally we investigate the endomorphism monoid of a strong semilattice of left groups.