A General Spatial Structure On Classes
A logic of injectivity.
A set functor which commutes with all homfunctors is a homfunctor
Aggregation operators on partially ordered sets and their categorical foundations
In spite of increasing studies and investigations in the field of aggregation operators, there are two fundamental problems remaining unsolved: aggregation of -fuzzy set-theoretic notions and their justification. In order to solve these problems, we will formulate aggregation operators and their special types on partially ordered sets with universal bounds, and introduce their categories. Furthermore, we will show that there exists a strong connection between the category of aggregation operators...
Algèbres graphiques (sur un concept de dimension dans les langages formels)
An example concerning set-functors
An Introduction to Adjunction
Axiomatic cohomology of operator algebras
Axiomatisation de la catégorie des catégories