Congruence kernels of orthoimplication algebras.
Chajda, I., Halaš, R., Länger, H. (2007)
Acta Mathematica Universitatis Comenianae. New Series
Similarity:
Displaying similar documents to “On subdirectly irreducible Steiner loops of cardinality .”
Congruence kernels of orthoimplication algebras.
Weak congruence identities at 0.
Chajda, Ivan, Šešelja, Branimir, Tepavčević, Andreja (2002)
Novi Sad Journal of Mathematics
Similarity:
Solutions of some classes of congruences
Eugen Vedral (2006)
The Teaching of Mathematics
Similarity:
On -permutable and distributive at 0 varieties.
Chajda, I. (1999)
Acta Mathematica Universitatis Comenianae. New Series
Similarity:
Relatively pseudocomplemented directoids
Ivan Chajda (2009)
Commentationes Mathematicae Universitatis Carolinae
Similarity:
The concept of relative pseudocomplement is introduced in a commutative directoid. It is shown that the operation of relative pseudocomplementation can be characterized by identities and hence the class of these algebras forms a variety. This variety is congruence weakly regular and congruence distributive. A description of congruences via their kernels is presented and the kernels are characterized as the so-called -ideals.
On some classes of good quotient relations.
Bošnjak, Ivica, Madarász, Rozália (2002)
Novi Sad Journal of Mathematics
Similarity:
On the subsemilattices of first-order definable and openly first-order definable congruences of the congruence lattice of a universal algebra.
Pinus, A.G. (2006)
Sibirskij Matematicheskij Zhurnal
Similarity:
General algebraic geometry and formal concept analysis.
Becker, T. (1999)
Acta Mathematica Universitatis Comenianae. New Series
Similarity:
Separation properties in congruence lattices of lattices
Miroslav Ploščica (2000)
Colloquium Mathematicae
Similarity:
We investigate the congruence lattices of lattices in the varieties . Our approach is to represent congruences by open sets of suitable topological spaces. We introduce some special separation properties and show that for different n the lattices in have different congruence lattices.
Properties of relatively pseudocomplemented directoids
Ivan Chajda, Miroslav Kolařík, Filip Švrček (2011)
Mathematica Bohemica
Similarity:
The concept of a relatively pseudocomplemented directoid was introduced recently by the first author. It was shown that the class of relatively pseudocomplemented directoids forms a variety whose axiom system contains seven identities. The aim of this paper is three-fold. First we show that these identities are not independent and their independent subset is presented. Second, we modify the adjointness property known for relatively pseudocomplemented semilattices in the way which is...