Monoidal grothendieck construction

J Moeller, C Vasilakopoulou - arXiv preprint arXiv:1809.00727, 2018 - arxiv.org
We lift the standard equivalence between fibrations and indexed categories to an
equivalence between monoidal fibrations and monoidal indexed categories, namely weak …

V-universal Hopf algebras (co)acting on -algebras

AL Agore, AS Gordienko… - Communications in …, 2023 - World Scientific
We develop a theory which unifies the universal (co) acting bi/Hopf algebras as studied by
Sweedler, Manin and Tambara with the recently introduced [AL Agore, AS Gordienko and J …

Interaction laws of monads and comonads

S Katsumata, E Rivas, T Uustalu - Proceedings of the 35th Annual ACM …, 2020 - dl.acm.org
We introduce and study functor-functor and monad-comonad interaction laws as
mathematical objects to describe interaction of effectful computations with behaviors of effect …

Coinductive control of inductive data types

PR North, M Péroux - arXiv preprint arXiv:2303.16793, 2023 - arxiv.org
We combine the theory of inductive data types with the theory of universal measurings. By
doing so, we find that many categories of algebras of endofunctors are actually enriched in …

Lifting of locally initial objects and universal (co) acting Hopf algebras

A Agore, A Gordienko, J Vercruysse - arXiv preprint arXiv:2406.17677, 2024 - arxiv.org
The universal (co) acting bi/Hopf algebras introduced by Yu.\, I.~ Manin, M.~ Sweedler and
D.~ Tambara, the universal Hopf algebra of a given (co) module structure, as well as the …

Generalizations of the Sweedler dual

HE Porst, R Street - Applied Categorical Structures, 2016 - Springer
As left adjoint to the dual algebra functor, Sweedler's finite dual construction is an important
tool in the theory of Hopf algebras over a field. We show in this note that the left adjoint to the …

[HTML][HTML] Enriched duality in double categories: V-categories and V-cocategories

C Vasilakopoulou - Journal of Pure and Applied Algebra, 2019 - Elsevier
In this work, we explore a double categorical framework for categories of enriched graphs,
categories and the newly introduced notion of cocategories. A fundamental goal is to …

On enriched fibrations

C Vasilakopoulou - arXiv preprint arXiv:1801.01386, 2018 - arxiv.org
We introduce the notion of an enriched fibration, ie a fibration whose total category and base
category are enriched in those of a monoidal fibration in an appropriate way. Furthermore …

The Hopf category of Frobenius algebras

P Großkopf, J Vercruysse - arXiv preprint arXiv:2406.18499, 2024 - arxiv.org
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 …

The coalgebraic enrichment of algebras in higher categories

M Péroux - Journal of Pure and Applied Algebra, 2022 - Elsevier
We prove that given C a presentably symmetric monoidal∞-category, and any essentially
small∞-operad O, the∞-category of O-algebras in C is enriched, tensored and cotensored …