Realization of small concrete categories by algebras and injective homomorphisms
Recollement of colimit categories and its applications
We give an explicit recollement for a cocomplete abelian category and its colimit category. We obtain some applications on Leavitt path algebras, derived equivalences and -groups.
Recursive coalgebras of finitary functors
For finitary set functors preserving inverse images, recursive coalgebras A of Paul Taylor are proved to be precisely those for which the system described by A always halts in finitely many steps.
Récursivité graphique (1e partie) : catégorie des fonctions récursives primitives formelles
Reducing inverse systems of monomorphisms
Reflections in locally presentable categories
Reflections on distal spaces
Reflective and coreflective subcategories of Unif (and Top)
Reflective functors via nearness
Reflective Kleisli subcategories of the category of Eilenberg-Moore algebras for factorization monads.
Reflective Mac Neille completions of fibre-small categories need not be fibre-small
Reflective subcategories and dense subcategories
Reflective subcategories of Poset and Top
Reflective-coreflective equivalence.
Reflectors and Coreflectors on Diagrams
Regular -spaces
Regularising natural dualities.
Relations between certain theories in functional analysis and general topology
Relative continuity of the functor
Relative homological categories.