English

Ordered Locales

Category Theory 2024-06-17 v2 General Topology

Abstract

We extend the Stone duality between topological spaces and locales to include order: there is an adjunction between the category of preordered topological spaces satisfying the so-called open cone condition, and the newly defined category of ordered locales. The adjunction restricts to an equivalence of categories between spatial ordered locales and sober T0T_0-ordered spaces with open cones.

Keywords

Cite

@article{arxiv.2303.03813,
  title  = {Ordered Locales},
  author = {Chris Heunen and Nesta van der Schaaf},
  journal= {arXiv preprint arXiv:2303.03813},
  year   = {2024}
}

Comments

23 pages, 5 figures; v2: added sections 7 and 8

R2 v1 2026-06-28T09:05:18.625Z