1 citations · 3 across the 4 of their papers we have counts for
Showing math.CTShow all
2 papers · 1 filter
math.CT2023
The representing localic groupoid for a geometric theory
Graham Manuell, Joshua L. Wrigley
We give an expository, and hopefully approachable, account of the Joyal-Tierney result that every topos can be represented as a topos of sheaves on a localic groupoid. We give an e…
math.CT2021★ 1 cited
Monoid extensions and the Grothendieck construction
Graham Manuell
In category theory circles it is well-known that the Schreier theory of group extensions can be understood in terms of the Grothendieck construction on indexed categories. However,…