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math.CT2024
Internal geometry and functors between sites
Konrad Waldorf
Locality is implemented in an arbitrary category using Grothendieck topologies. We explore how different Grothendieck topologies on one category can be related, and, more general,…
math.CT2007★ 56 cited
More Morphisms between Bundle Gerbes
Konrad Waldorf
Usually bundle gerbes are considered as objects of a 2-groupoid, whose 1-morphisms, called stable isomorphisms, are all invertible. I introduce new 1-morphisms which include stable…