TWO PARTICULAR EVENTUALLY REGULAR SEMIGROUPS WITH 0-MODULAR OR 0-DISTRIBUTIVE SUBSEMIGROUP LATTICES

The structure of a completely π-regular semigroup with 0-modular or 0-distributive subsemigroup lattice is given. Furthermore, it is shown that an eventually inverse semigroup to have 0-modular or 0-distributive subsemigroup lattice is a completely π-regular semigroup which is a semilattice of completely archimedean semigroups. Thus the structure of an eventually inverse semigroup whose subsemigroup lattice is 0-modular or 0-distributive is characterized as well.