Functional separation of inductive limits and representation of presheaves by sections. Part one: Separation theorems for inductive limits of closured presheaves
Generation of coreflections in categories
H-closed Spaces and Reflective Subcategories.
Initial Morphisms and Monomorphisms.
L-guilds and binary L-merotopies.
Liftings of Stone's monadicity to spaces and the duality between the calculi of inverse and direct images
Linking the closure and orthogonality properties of perfect morphisms in a category
We define perfect morphisms to be those which are the pullback of their image under a given endofunctor. The interplay of these morphisms with other generalisations of perfect maps is investigated. In particular, closure operator theory is used to link closure and orthogonality properties of such morphisms. A number of detailed examples are given.
Local extension of maps.
Monoidal closed structures for topological spaces : counter-example to a question of Booth and Tillotson
Monomorphisms and epimorphisms of inverse systems
Natural sinks on
Let be the large source of epimorphisms in the category of Urysohn spaces constructed in [2]. A sink is called natural, if for all . In this paper natural sinks are characterized. As a result it is shown that permits no -factorization structure for arbitrary (large) sources.
Nearness and uniform type structures
Neighborhood spaces.
Non Archimedean metric induced fuzzy uniform spaces.
Non-constant continuous maps of modifications of topological spaces
Normal P-spaces and the -topology
Note about atom-categories of topological spaces
Note on universal topological completion
On a construct of closure spaces
On a fuzzy topological structure