O ()-ideáloch direktného súčinu pologrúp
O multiplikatívnej pologrupe zvyškových tried (mod )
O pologrupách, ktorých každý ľavý hlavný ideál obsahuje jednotku
O rozklade pologrupy zvyškov (mod ) na direktný súčin
Objets algébriquement clos et injectifs dans les catégories localement présentables
Objets simpliciaux
On (0,1)-matrix semigroups.
On 0-homology of categorical at zero semigroups
The isomorphism of 0-homology groups of a categorical at zero semigroup and homology groups of its 0-reflector is proved. Some applications of 0-homology to Eilenberg-MacLane homology of semigroups are given.
On 0-Minimal (0, 2)-Bi-Ideals Of Semigroups
On 0-Minimal Bi-Ideals Of Semigroups
On 0-minimal bi-ideals of semigroups.
On 0-simple inverse semigroups.
On 0-simple semigroups.
On 0-simple semigroups admitting ring structure.
On 0-simple semirings, semigroup semirings and two kinds of division semirings.
On A Class Of Anti-Inverse Semigroups
On a class of modular numerical semigroups.
On a class of semigroups admitting ring structure.
On a class of semigroups with symmetric presentations.
On a class of semisimple semigroups.