On subdirect irreducibility and its variants
On subdirect irreducibility in semiregular categories
Operads in higher-dimensional category theory.
Partial completions of concrete functors
Proarrows II
Productive representations of semigroups by pairs of structures
Products of metric, uniform and topological spaces
Projectivity of acts and Morita equivalence of monoids.
Quantizations in a category of relations.
Quotient models of a category up to directed homotopy.
Realization of small concrete categories by algebras and injective homomorphisms
Reflectors and Coreflectors on Diagrams
Remarks on subdirect representations in categories
Simmetrizzazione di una categoria
Simmetrizzazioni di una categoria
Simmetrizzazioni di una categoria
Structure functors - Compositions of arbitrary right adjoints with topological functors I -
Structures Quasi-Quotient.
Sur la caractérisation sémantique des catégories de structures
Sur les structures d'effacement.