Ring epimorphisms and .
Searching for more absolute CR-epic spaces.
Semiconvex compacta
We define and investigate a generalization of the notion of convex compacta. Namely, for semiconvex combination in a semiconvex compactum we allow the existence of non-trivial loops connecting a point with itself. It is proved that any semiconvex compactum contains two non-empty convex compacta, the center and the weak center. The center is the largest compactum such that semiconvex combination induces a convex structure on it. The convex structure on the weak center does not necessarily coincide...
Semigroups and the structure of categories
Semilocalizations of exact and leftextensive categories
Semisimplicity and von Neumann's regularity.
Semitopological homomorphisms
Separable functors in corings.
Separable morphisms of simplicial sets.
Sequences of Adjoints for Ens-Valued Functors.
Set functors
Set theory and category theory: Two rival siblings and their relations with the foundations of mathematics. (La théorie des ensembles et la théorie des catégories: Présentation de deux soeurs ennemies du point de vue de leurs relations avec les fondements des mathématiques.)
Several constructions for factorization systems.
Several extremal coreflective classes in uniform spaces
Shape Invariant Functors: Application in Module-Theory.
Sheaves and concepts : a model-theoretic interpretation of Grothendieck topoi
Simmetrizzazione di una categoria
Simmetrizzazioni di una categoria
Simmetrizzazioni di una categoria
Simply (co)reflective subcategories of the categories determined by poset-valued functors