On some classes of point algebras
On some classes of regular semigroups.
On some problems of Petrich concerning Brück and Reilly semigroups.
On special Qr-filters of semigroups, semirings and rings.
On special Rees matrix semigroups over semigroups
We study the right regular representation of special Rees matrix semigroups over semigroups, and discuss their embedding in idempotent-free left simple semigroups.
On strongly reversible semigroups.
On super hamiltonian semigroups
The concept of super hamiltonian semigroup is introduced. As a result, the structure theorems obtained by A. Cherubini and A. Varisco on quasi commutative semigroups and quasi hamiltonian semigroups respectively are extended to super hamiltonian semigroups.
On syntacticity of finite regular semigroups.
On Takizawa's construction for E-unitary R-unipotent semigroups
On the additive semigroup structure of semirings.
On the Burnside problem for semigroups of matrices in the (max, + ) algebra.
On the categori-city of semigroup-theoretical properties.
On the characterization of semilattices satisfying the descending chain condition and some remarks on distinguishing subsets
On the closure of bisimple w-semigroups.
On the construction of bisimple orthodox semigroups.
On the decomposition of RL-semigroups into groups.
On the defect theorem and simpliflability.
On the elementary theory of free inverse semigroups.
On the Embedding of Semigroups into 2-Engel Groups
On the Embedding of Semigroups into Nilpotent Groups