Recollements from generalized tilting

Recursion categories of coalgebras

Relative Commutator Theory in Semi-Abelian Categories

Relative Frobenius algebras are groupoids

Relative homological categories

Relative injectivity as cocompleteness for a class of distributors

Relative Regular Objects in Categories

Relativity grupoid insted of relativity group

Relaxed multi category structure of a global category of rings and modules

Relevant Categories and Partial Functions

Remarks on 2-Groups

Remarks on exactness notions pertaining to pushouts

Repetitive higher cluster categories of type A_n

Representation theory of 2-groups on finite dimensional 2-vector spaces

Resonance Category

Resource modalities in game semantics

Restriction categories III: colimits, partial limits, and extensivity

Ribbon categories and (unoriented) CFT: Frobenius algebras, automorphisms, reversions

Ribbon Structure in Symmetric Pre-monoidal Categories

Rigidification of quasi-categories