The number of subsemigroups of certain semigroups
Note of the greatest'semilattice decomposition of a semigroup.
Basic study of ....-semigroups and their homomorphisms II.
On commutative exclusive semigroups.
Finite union of commutative power joined semigroups.
On chains whose power semigroups are lattices.
Nil-orders of commutative nil-bounded semigroups.
Semilattice Indecomposable semigroups with a unique Idempotent.
Remark on the smallest semilattice congruence.
On Putcha's Theorem concerning semilattice of archimedean semigroups.
Commutative semigroups whose lattice of congruences is a chain
Is minimal group congruence smallest?
Finiteness of lattices of congruences on commutative semigroups.
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