Sober spaces and continuations.
Sobre resolubilidad en una categoría de Burgin.
En un trabajo de Huq se introduce el concepto de resolubilidad en categorías [2]. En mi tesis doctoral [1 (4.2.3), p.87] se hace distinción entre resolubilidad fuerte (resolubilidad de Huq) y resolubilidad, conceptos que coinciden en el caso de grupos, anillos asociativos y álgebras de Lie, pero no en cualquier tipo de Ω-grupos, donde la resolubilidad corresponde a la introducida en [1].El objeto de esta nota es dar una caracterización de los objetos resolubles (corolario 6), la cual nos permite...
Sobre Una Definicion De Cardinales Finitos En Un Topos Arbitrario.
Solution manifolds for systems of differential equations.
Some categories of models.
Some properties of the functor .
Some remarks on preservation of topological products
Some Remarks on the Category Set(l), Part II
Some results on C-varieties
In an earlier paper, the second author generalized Eilenberg's variety theory by establishing a basic correspondence between certain classes of monoid morphisms and families of regular languages. We extend this theory in several directions. First, we prove a version of Reiterman's theorem concerning the definition of varieties by identities, and illustrate this result by describing the identities associated with languages of the form (a1a2...ak)+, where a1,...,ak are distinct letters. Next,...
Some results on -varieties
In an earlier paper, the second author generalized Eilenberg’s variety theory by establishing a basic correspondence between certain classes of monoid morphisms and families of regular languages. We extend this theory in several directions. First, we prove a version of Reiterman’s theorem concerning the definition of varieties by identities, and illustrate this result by describing the identities associated with languages of the form , where are distinct letters. Next, we generalize the notions...
Sous-quotients et relations induites dans les catégories exactes
Space structures, their theory and application. II.
Spaced spaces
Spaces which admit negative powers and all roots (Preliminary communication)
Special morphisms of groupoids.
Spectra of differential rings
Spectra of finitely generated Boolean flows.
Spectra of rings and lattices.
Stabile Kategorien.
Stability of algebraic inverse systems, I: Stability, weak stability and the weakly-stable socle