3 papers
math.CT2019
A Larson-Sweedler Theorem for Hopf V-Categories
Mitchell Buckley, Timmy Fieremans, Christina Vasilakopoulou +1
The aim of this paper is to extend the classical Larson-Sweedler theorem, namely that a k-bialgebra has a non-singular integral (and in particular is Frobenius) if and only if it i…
math.CT2017
Oplax Hopf Algebras
Mitchell Buckley, Timmy Fieremans, Christina Vasilakopoulou +1
We introduce the notion of an oplax Hopf monoid in any braided monoidal bicategory, generalizing that of a Hopf monoid in a braided monoidal category in an appropriate way. We show…
math.RA2017
Descent and Galois theory for Hopf categories
S. Caenepeel, T. Fieremans
Descent theory for linear categories is developed. Given a linear category as an extension of a diagonal category, we introduce descent data, and the category of descent data is is…