A characterezation of regular duo semigroups
A characterization of groups in the class of *-regular semigroups.
A characterization of regular monoids by flatness of left acts.
A class of quasi-adequate transformation semigroups.
A concept of variety for regular biordered sets.
A generalization of the Rees Theorem to a class o£ regular semigroups.
A multiplication of e-varieties of regular -solid semigroups by inverse semigroup varieties
A multiplication of e-varieties of regular -solid semigroups by inverse semigroup varieties is described both semantically and syntactically. The associativity of the multiplication is also proved.
A Note on Classes of Regularity in Semigroups
A note on semilattice decompositions of completely -regular semigroups.
A special congruence lattice of a regular semigroup.
Absolute flatness of regular semigroups with a finite height function.
Abundant semigroups with a medical idempotent.
Adjoint regular rings.