Embedding of semilattices into distributive lattices
Embeddings of lattices in the lattice of topologies
Endliche Verbände.
Endlichkeitsbedingungen bei Verbänden, Moduln, Gruppen.
Equational Bases for Lattice Theories.
Equational theory of continuous lattices.
Equimorphy in varieties of distributive double -algebras
Any finitely generated regular variety of distributive double -algebras is finitely determined, meaning that for some finite cardinal , any subclass of algebras with isomorphic endomorphism monoids has fewer than pairwise non-isomorphic members. This result follows from our structural characterization of those finitely generated almost regular varieties which are finitely determined. We conjecture that any finitely generated, finitely determined variety of distributive double -algebras...
Equimorphy in varieties of double Heyting algebras
We show that any finitely generated variety V of double Heyting algebras is finitely determined, meaning that for some finite cardinal n(V), any class ⊆ V consisting of algebras with pairwise isomorphic endomorphism monoids has fewer than n(V) pairwise non-isomorphic members. This result complements the earlier established fact of categorical universality of the variety of all double Heyting algebras, and contrasts with categorical results concerning finitely generated varieties of distributive...
Equivalences, a-semigroups and a-congruences.
Errata to the paper “On paracompact locales and metric locales”
Essentially Complete T...-Spaces II. A Lattice-Theoretic Approach.
Étude des jets de Demailly-Semple en dimension 3
Dans cet article nous faisons l’étude algébrique des jets de Demailly-Semple en dimension 3 en utilisant la théorie des invariants des groupes non réductifs. Cette étude fournit la caractérisation géométrique du fibré des jets d’ordre 3 sur une variété de dimension 3 et permet d’effectuer, par Riemann-Roch, un calcul de caractéristique d’Euler.
Étude des tresses de Gutmann en algèbre à valeurs
La notion de tresse de Gutmann a été introduite ([4]) pour généraliser la notion de chaîne de Gutmann qui restait souvent assez loin du protocole observé. Les tresses de Gutmann ont été étudiées ([3], [4], [6]) en considérant que les réponses au questionnaire étaient dichotomiques. Nous supposons ici que les réponses aux questions appartiennent à un ensemble fini totalement ordonné quelconque.
Etude du treillis des congruences à droite sur le monoide bicyclique.
Every finite lattice can be embedded in the lattice of all equivalences over a finite set (Preliminary communication)
Every lattice is embeddable in the lattice of -topologies
Examples of statisch and finite-statisch AC-lattices
Exponentiable morphisms: Posets, spaces, locales, and Grothendieck toposes.
Extenseurs
Extensions dans les treillis