summary:We say that a variety ${\mathcal V}$ of algebras has the Compact Intersection Property (CIP), if the family of compact congruences of every $A\in {\mathcal V}$ is closed under intersection. We investigate the congruence lattices of algebras in locally finite, congruence-distributive CIP varieties and obtain a complete characterization for several types of such varieties. It turns out that our description only depends on subdirectly irreducible algebras in ${\mathcal V}$ and embeddings between them. We believe that the strategy used here can be further developed and used to describe the congruence lattices for any (locally finite) congruence-distributive CIP variety
summary:We prove that the lattice of varieties contains almost no compact elements
Given a variety K of algebras, among the interesting questions we can ask about the members of K is...
We prove that every distributive algebraic lattice with at most $\aleph_1$ compact elements is isomo...
summary:We say that a variety ${\mathcal V}$ of algebras has the Compact Intersection Property (CIP)...
It is shown that a variety V has distributive congruence lattices if and only if the intersection of...
A universal algebra is called congruence compact if every family of congruence classes with the fini...
AbstractWe denote by ConcL the (∨,0)-semilattice of all finitely generated congruences of a lattice ...
Abstract. For varieties, congruence modularity is equivalent to the tolerance intersection property,...
J. Tuma proved an interesting "congruence amalgamation" result. We are generalizing and providing an...
For varieties, congruence modularity is equivalent to the tolerance intersection property, TIP in sh...
International audienceFor a class V of algebras, denote by Conc(V) the class of all semilattices iso...
AbstractWe prove that every distributive algebraic lattice with at most ℵ1 compact elements is isomo...
Varieties generated by a two-element algebra (here called two-generated varieties) have long const...
A variety V of universal algebras is said to be congruence per-mutable if for every algebra A of V a...
Abstract. We denote by Conc A the semilattice of all compact congruences of an algebra A. Given a va...
summary:We prove that the lattice of varieties contains almost no compact elements
Given a variety K of algebras, among the interesting questions we can ask about the members of K is...
We prove that every distributive algebraic lattice with at most $\aleph_1$ compact elements is isomo...
summary:We say that a variety ${\mathcal V}$ of algebras has the Compact Intersection Property (CIP)...
It is shown that a variety V has distributive congruence lattices if and only if the intersection of...
A universal algebra is called congruence compact if every family of congruence classes with the fini...
AbstractWe denote by ConcL the (∨,0)-semilattice of all finitely generated congruences of a lattice ...
Abstract. For varieties, congruence modularity is equivalent to the tolerance intersection property,...
J. Tuma proved an interesting "congruence amalgamation" result. We are generalizing and providing an...
For varieties, congruence modularity is equivalent to the tolerance intersection property, TIP in sh...
International audienceFor a class V of algebras, denote by Conc(V) the class of all semilattices iso...
AbstractWe prove that every distributive algebraic lattice with at most ℵ1 compact elements is isomo...
Varieties generated by a two-element algebra (here called two-generated varieties) have long const...
A variety V of universal algebras is said to be congruence per-mutable if for every algebra A of V a...
Abstract. We denote by Conc A the semilattice of all compact congruences of an algebra A. Given a va...
summary:We prove that the lattice of varieties contains almost no compact elements
Given a variety K of algebras, among the interesting questions we can ask about the members of K is...
We prove that every distributive algebraic lattice with at most $\aleph_1$ compact elements is isomo...