Simultaneous representations in discrete structures
Simultaneously reflective and coreflective subcategories of presheaves.
Small-fibred semitopological functors without small-fibred initial completions
Some categories of models.
Some epimorphic regular contexts.
Some functors related to polynomial theory
Some functors related to polynomial theory. II
Some Fundamental Structures On Classes
Some generalizations of the notions limit and colimit
Some properties of Butler modules over valuation domains
Some properties of epimorphisms of Hilbert algebras
This paper represents a start in the study of epimorphisms in some categories of Hilbert algebras. Even if we give a complete characterization for such epimorphisms only for implication algebras, the following results will make possible the construction of some examples of epimorphisms which are not surjective functions. Also, we will show that the study of epimorphisms of Hilbert algebras is equivalent with the study of epimorphisms of Hertz algebras.
Some properties of Lorenzen ideal systems
Let be a partially ordered abelian group (-group). The construction of the Lorenzen ideal -system in is investigated and the functorial properties of this construction with respect to the semigroup of all -ideal systems defined on are derived, where for and a lower bounded subset , . It is proved that Lorenzen construction is the natural transformation between two functors from the category of -groups with special morphisms into the category of abelian ordered semigroups.
Some properties of set functors
Some remarks on preservation of topological products
Some Remarks or v-Ideal Systems and Categories of semigroups
Sous-catégories semi-pleines maximales d'une catégorie
Splitting classes in categories of groups.
Stability of algebraic inverse systems, I: Stability, weak stability and the weakly-stable socle
Stability Results for Topological Spaces.
Stable surjection logic