Some results on congruences on semihypergroups.
Special congruence triples for a regular semigroup.
Strong endomorphism kernel property for finite Brouwerian semilattices and relative Stone algebras
We show that all finite Brouwerian semilattices have strong endomorphism kernel property (SEKP), give a new proof that all finite relative Stone algebras have SEKP and also fully characterize dual generalized Boolean algebras which possess SEKP.
Strong endomorphism kernel property for monounary algebras
All monounary algebras which have strong endomorphism kernel property are described.
Strong P-congruences on P-regular semigroups.
Strong regular varieties of partial algebras I
Subalgebra lattices of completely simple semigroups.
Subalgebra modular, distributive and boolean varieties of semigroups
Subalgebras and homomorphic images of algebras having the CEP and the WCIP
In the present paper we consider algebras satisfying both the congruence extension property (briefly the CEP) and the weak congruence intersection property (WCIP for short). We prove that subalgebras of such algebras have these properties. We deduce that a lattice has the CEP and the WCIP if and only if it is a two-element chain. We also show that the class of all congruence modular algebras with the WCIP is closed under the formation of homomorphic images.
Subcoherent algebras
Subdirectly irreducible groupoids in some varieties
Sur quelques problèmes de plongement en algèbre
Sur quelques problèmes de plongements en algèbre
Sur une congruence et l'homomorphisme faible des algèbres universelles