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
Reflexive and antisymmetric relations and their systems
Reflexive and dihedral (co)homology of a pre-additive category.
Reflexive cum Coreflexive Subcategories in Topology.
Regular closure operators and compactness
Regular -spaces
Regularising natural dualities.
Relating quantum and braided Lie algebras
We outline our recent results on bicovariant differential calculi on co-quasitriangular Hopf algebras, in particular that if is a quantum tangent space (quantum Lie algebra) for a CQT Hopf algebra A, then the space is a braided Lie algebra in the category of A-comodules. An important consequence of this is that the universal enveloping algebra is a bialgebra in the category of A-comodules.
Relational monoids, multirelations, and quantalic recognizers
Relations between certain theories in functional analysis and general topology
Relations With I-structure in Categories With Pullbacks
Relationship of algebraic theories to powerset theories and fuzzy topological theories for lattice-valued mathematics.
Relative Algebraic K-Theory. An Appendix to the Paper of K.R.Coombes and V. Srinivas.
Relative cohomolgy of groups.
Relative continuity of the functor