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math.QA2025
2D HQFTs and Frobenius -categories
Paul Großkopf
Homotopy Quantum Field Theories as variants of Topological Quantum Field Theories are described by functors from some cobordism category, enriched with homotopical data, to a symme…
math.QA2024
The Hopf category of Frobenius algebras
Paul Großkopf, Joost Vercruysse
We show that the universal measuring coalgebras between Frobenius algebras turn the category of Frobenius algebras into a Hopf category (in the sense of Batista-Caenepeel-Vercruyss…