On realization and boundability of concrete categories in which the morphisms are choiced by local conditions
On reflexive subobject lattices and reflexive endomorphism algebras
In this paper we study the reflexive subobject lattices and reflexive endomorphism algebras in a concrete category. For the category Set of sets and mappings, a complete characterization for both reflexive subobject lattices and reflexive endomorphism algebras is obtained. Some partial results are also proved for the category of abelian groups.
On rich monoids
On selecting of morphisms among all mappings between underlying sets of objects in concrete categories and realisations of these
On several varieties of cacti and their relations.
On simply bireflective subcategories
On subgroups of the Lambek pregroup.
On sums in generalized algebraic categories
On synchronized relatively full embeddings and -universality
On system of subobject functors in the category of ordered sets
On the category of filters
On the category of topological topologies
On the characterization of monadic categories over set
On the co-completeness of the category of Hausdorff uniform spaces.
On the construction of the extensional topological hull
On the equation xt- » xt+q in categories.
On the exact completion of the homotopy category
On the geometric bar construction and the Brown representability theorem
On the geometry of computations
On the Grothendieck topologies in the toposes of presheaves