A Classifying groupoid for compact Hausdorff locales
Category Theory
2023-10-13 v1
Abstract
We construct a localic groupoid such that for any locale the category of compact Hausdorff locales in the topos of sheaves over is equivalent to a category whose objects are principal -bundles over and whose morphisms are -homotopies (where is the Sierpi\'{n}ski locale). This result can be intuitively viewed as the compact Hausdorff dual of the well known result from topos theory that there is an object classifier.
Cite
@article{arxiv.2310.07785,
title = {A Classifying groupoid for compact Hausdorff locales},
author = {Simon Henry and Christopher Townsend},
journal= {arXiv preprint arXiv:2310.07785},
year = {2023}
}
Comments
11 pages