2 papers
math.CT2026
Categories graded by group homomorphisms
Jonathan Davies
We generalise to a group homomorphism the -graded categories of Sözer and Virelizier. These are categories in which both morphisms and objects have compatible degrees. We…
math.QA2025
Higher tensor categories and their extensions: notes from the Scottish Talbot On Algebra and Topology
Diogo Andrade, Julia Bierent, Jennifer Brown +28
These lecture notes are the product of a week-long learning workshop on the work of Johnson-Freyd and Reutter on the problem of the existence of minimal nondegenerate extensions of…