RO EN
Clifford congruences on perfect semigroups
Authors: R. S. Gigon
– 0.38 Mb
Abstract
We describe the least Clifford congruence on a some idempotent-surjective perfect semigroup S. In addition, a characterization of all Clifford congruences on such a semigroup is given. Furthermore, we find necessary and sufficient conditions for such congruences to be idempotent pure or E-unitary. Moreover, we give a full description of all USG-congruences on some idempotent-surjective perfect semigroup.Fulltext
– 0.38 Mb
Contents
- On Latin squares of polynomially complete quasigroups and quasigroups generated by shifts
- Hom-Bol algebras
- Ascending chain conditions on principal left and right ideals for semidirect products of ordered semigroups
- On regular medial division algebras
- Contractions of quasigroups and Latin squares
- On 2-absorbing semimodules
- Strong forms of orthogonality for sets of frequency hypercubes
- A still shorter axiom for trimedial quasigroups
- Clifford congruences on perfect semigroups
- E-disjunctive semigroups and idempotent pure congruences
- Groups with the same orders and large character degrees as PGL(2,9)
- Coset diagrams of the action of a certain Bianchi group on PL(Fp)
- Automorphisms of abelian n-ary groups
- Free products of dimonoids
