A cartesian closed extension of a category of affine schemes
A categorical approach to invariant means and fixed point properties.
A note on Girard quantales
A pseudo representation theorem for various categories of relations.
Adhesive and quasiadhesive categories
We introduce adhesive categories, which are categories with structure ensuring that pushouts along monomorphisms are well-behaved, as well as quasiadhesive categories which restrict attention to regular monomorphisms. Many examples of graphical structures used in computer science are shown to be examples of adhesive and quasiadhesive categories. Double-pushout graph rewriting generalizes well to rewriting on arbitrary adhesive and quasiadhesive categories.
Adhesive and quasiadhesive categories
We introduce adhesive categories, which are categories with structure ensuring that pushouts along monomorphisms are well-behaved, as well as quasiadhesive categories which restrict attention to regular monomorphisms. Many examples of graphical structures used in computer science are shown to be examples of adhesive and quasiadhesive categories. Double-pushout graph rewriting generalizes well to rewriting on arbitrary adhesive and quasiadhesive categories.
Adjointness between theories and strict theories
The categorical concept of a theory for algebras of a given type was foundet by Lawvere in 1963 (see [8]). Hoehnke extended this concept to partial heterogenous algebras in 1976 (see [5]). A partial theory is a dhts-category such that the object class forms a free algebra of type (2,0,0) freely generated by a nonempty set J in the variety determined by the identities ox ≈ o and xo ≈ o, where o and i are the elements selected by the 0-ary operation symbols. If the object class of a dhts-category...
Alcune proprietà della categoria delle -algebre
An imperative language based on distributive categories II
Categoria degli universi di dispositivi e categoria delle -algebre
Catégories modelables et catégories esquissables
Categories of functors between categories with partial morphisms
It is well-known that the composition of two functors between categories yields a functor again, whenever it exists. The same is true for functors which preserve in a certain sense the structure of symmetric monoidal categories. Considering small symmetric monoidal categories with an additional structure as objects and the structure preserving functors between them as morphisms one obtains different kinds of functor categories, which are even dt-symmetric categories.
Catégories préadditives structurées
Categories with slicing.
Complétion des catégories ordonnées
Cet article fait suite à trois mémoires parus dans les Annales de l’Institut Fourier (tomes 10, 13 et 14). Son but est d’étendre aux catégories ordonnées les résultats sur les atlas et sur la complétion, précédemment obtenus dans le cas des groupoïdes sous-préinductifs et prélocaux.Soit une catégorie ordonnée régulière dont le groupoïde des éléments inversibles est ordonné semi-régulier. On associe à les catégories -structurées régulières des fusées régulières et des fusées strictes régulières,...
Complétion d'un foncteur structuré
Construction of Cartesian closed topological hulls
Demi-groupes et catégories à involution
Dualities of concrete categories
Duality of Banach spaces