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Manuel Bärenz
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Is the category of spherical fusion categories regular? (i.e. is image factorisation possible?)

Consider the category where objects are strict spherical fusion categories and morphisms are strict spherical functors (preserving cups and caps). I am wondering whether there is some kind of image factorisation possible in this category, similar to finite groups, where every homomorphism can be written as a composition of an epimorphism and a monomorphism.

Manuel Bärenz
  • 5.6k
  • 18
  • 49