Semigroups and ordered categories. I. The reduced case

Categories as algebra: An essential ingredient in the theory of monoids

Bret Tilson · Journal of Pure and Applied Algebra · 1987 · 281 citations

Essential Ingredient, Abstract Algebra, Higher Category Theory +2

Structure of regular semigroups. I

K. S. S. Nambooripad · Memoirs of the American Mathematical Society · 1979 · 242 citations

Spectral Theory, Regular Semigroups, Topological Semigroups +2

Relation algebras and function semigroups

Boris M. Schein · Semigroup Forum · 1970 · 104 citations

Topological Semigroups, Algebraic Logic, Relation Algebras +1

Idempotent-connected abundant semigroups

Abdulsalam El-Qallali, John Fountain · Proceedings of the Royal Society of Edinburgh Section A Mathematics · 1981 · 90 citations

Topological Semigroups, Hall Semigroup T, Abundant Semigroups +5

Right PP monoids with central idempotents

John Fountain · Semigroup Forum · 1976 · 83 citations

Algebraic Combinatorics, Universal Algebra, Pp Monoids +1