Relative injectivity as cocompleteness for a class of distributors

• Author(s): Clementino, Maria Manuel ; Hofmann, Dirk
• Date: 2008
• Persistent ID: http://hdl.handle.net/10316/11241
• Origin: Estudo Geral - Universidade de Coimbra
• Subject(s): Quantale; V-category; Monad; Topological theory; Distributor; Yoneda lemma; Weighted colimit
• Document Type: Preprint
• Language: English

Description

Notions and techniques of enriched category theory can be used to study topological structures, like metric spaces, topological spaces and approach spaces, in the context of topological theories. Recently in [D. Hofmann, Injective spaces via adjunction, arXiv:math.CT/0804.0326] the construction of a Yoneda embedding allowed to identify injectivity of spaces as cocompleteness and to show monadicity of the category of injective spaces and left adjoints over Set. In this paper we generalise these results, studying cocompleteness with respect to a given class of distributors. We show in particular that the description of several semantic domains presented in [M. Escard´o and B. Flagg, Semantic domains, injective spaces and monads, Electronic Notes in Theoretical Computer Science 20 (1999)] can be translated into the V-enriched setting. Centro de Matemática da Universidade de Coimbra/FCT; Unidade de Investigação e Desenvolvimento Matemática e Aplicações da Universidade de Aveiro/FCT.