A remark on common fixed sets of commuting mappings
On selecting of morphisms among all mappings between underlying sets of objects in concrete categories and realisations of these
Pointless uniformities. II: (Dia)metrization
Diameters in locales: How bad they can be
Tensor products in the category of graphs
Limits of functors and realisations of categories
Concerning universal categories
An analogon of the fixed-point theorem and its application for graphs
A remark on selective functors
Extending tensor products to structures of closed categories
On full embeddings of concrete categories with respect to forgetful functors
On the homology theory of discrete spaces
Fuzziness and fuzzy equality
Fuzzy mappings and fuzzy sets
Pointless uniformities. I. Complete regularity
On simply bireflective subcategories
Equationally close subframes and representation of quotient spaces
Peculiar behavior of connected locales
On categorial embeddings of topological structures into algebraic
Approximate maps, filter monad, and a representation of localic maps
A covariant representation of the category of locales by approximate maps (mimicking a natural representation of continuous maps between spaces in which one approximates points by small open sets) is constructed. It is shown that it can be given a Kleisli shape, as a part of a more general Kleisli representation of meet preserving maps. Also, we present the spectrum adjunction in this approximation setting.
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