Minimal n-prime Ideal Spaces.
Modifications of closure collections
Note on Demi-Topological Functors.
On basic concepts of non-commutative topology
On idempotent filters
Prime filters with CIP
Problemi di decidibilità in logica topologica
Producto, convexificación y completación de espacios métricos generalizados y probabilísticos.
En 1967 E. Trillas introdujo la noción de espacio métrico generalizado, al considerar métricas abstractas valoradas en semigrupos ordenados, unificando con este punto de vista algebraico-reticular las estructuras métricas reales de M. Fréchet ([5]) y los espacios métricos probabilísticos de K. Menger ([6]) (así como los espacios Booleanos de Blumenthal ([4]) y las métricas naturales definidas en grupos ordenados). En el presente artículo se abordan los problemas de la topología del orden, del producto,...
Products of filters
Propriété de Baire de muni d’une nouvelle topologie et application à la construction d’ultrafiltres
Pseudoradial Spaces: Finite Products and an Example From CH
∗ The first named author’s research was partially supported by GAUK grant no. 350, partially by the Italian CNR. Both supports are gratefully acknowledged. The second author was supported by funds of Italian Ministery of University and by funds of the University of Trieste (40% and 60%).Aiming to solve some open problems concerning pseudoradial spaces, we shall present the following: Assuming CH, there are two semiradial spaces without semi-radial product. A new property of pseudoradial spaces...
Rapport entre l'ensemble des ultrafiltres admettant un ultrafiltre donné pour image et l'ensemble des images de cet ultrafiltre
Refining Families for Ultrafilters.
Regular and normal quantales
Representations of presheaves of semiuniformisable spaces, and representation of a presheaf by the presheaf of all continuous sections in its covering-space
Sobre L-órdenes entre t-normas estrictas.
Several order relations in the set of strict t-norms are investigated.
Structure resolvability
We introduce the general notion of structure resolvability and structure irresolvability, generalizing the usual concepts of resolvability and irresolvability.
T-categories and some representation theorems
The characterizations of upper approximation operators based on special coverings
In this paper, we discuss the approximation operators [...] apr¯NS and [...] apr¯S which are based on NS(U) and S. We not only obtain some properties of NS(U) and S, but also give examples to show some special properties. We also study sufficient and necessary conditions when they become closure operators. In addition, we give general and topological characterizations of the covering for two types of covering-based upper approximation operators being closure operators.
The partially ordered family of C M-homomorphisms.