English

Enriched Stone-type dualities

Category Theory 2017-04-03 v2

Abstract

A common feature of many duality results is that the involved equivalence functors are liftings of hom-functors into the two-element space resp. lattice. Due to this fact, we can only expect dualities for categories cogenerated by the two-element set with an appropriate structure. A prime example of such a situation is Stone's duality theorem for Boolean algebras and Boolean spaces,the latter being precisely those compact Hausdorff spaces which are cogenerated by the two-element discrete space. In this paper we aim for a systematic way of extending this duality theorem to categories including all compact Hausdorff spaces. To achieve this goal, we combine duality theory and quantale-enriched category theory. Our main idea is that, when passing from the two-element discrete space to a cogenerator of the category of compact Hausdorff spaces, all other involved structures should be substituted by corresponding enriched versions. Accordingly, we work with the unit interval [0,1][0,1] and present duality theory for ordered and metric compact Hausdorff spaces and (suitably defined) finitely cocomplete categories enriched in [0,1][0,1].

Keywords

Cite

@article{arxiv.1605.00081,
  title  = {Enriched Stone-type dualities},
  author = {Dirk Hofmann and Pedro Nora},
  journal= {arXiv preprint arXiv:1605.00081},
  year   = {2017}
}
R2 v1 2026-06-22T13:45:15.505Z