activity
20222026
most citedDiagrammatics for Comodule Monads

1 citations · 2 across the 6 of their papers we have counts for

collaborators

8 papers

math.CT2026

Gabi-Monads

Sebastian Halbig, Paolo Saracco, Tony Zorman

We study gabi-monads on skew-closed categories, extending the gabi-algebras of Berger, the second author, and Vercruysse beyond the linear case. Our main reconstruction theorem ide…

math.CT2026

Categorical Reconstruction Theory

Tony Zorman

We generalise classical reconstruction results in algebra, using the language of monads, monoidal categories, module categories, as well as various notions of duality, such as clos…

math.CT2025

Duoidal R-Matrices

Tony Zorman

In this note, we define an analogue of R-matrices for bialgebras in the setting of a monad that is opmonoidal over two tensor products. Analogous to the classical case, such struct…

math.RT2025

Simple algebras and exact module categories

Kevin Coulembier, Mateusz Stroiński, Tony Zorman

We verify a conjecture of Etingof and Ostrik, stating that an algebra object in a finite tensor category is exact if and only if it is a finite direct product of simple algebras. T…

math.QA2024

Reconstruction of module categories in the infinite and non-rigid settings

Mateusz Stroiński, Tony Zorman

By building on the notions of internal projective and injective objects in a module category introduced by Douglas, Schommer-Pries, and Snyder, we extend the reconstruction theory…

math.CT2023★ 1 cited

Diagrammatics for Comodule Monads

Sebastian Halbig, Tony Zorman

We extend Willerton's graphical calculus for bimonads to comodule monads, a monadic interpretation of module categories over a monoidal category. As an application, we prove a vers…

math.CT2023

Duality in Monoidal Categories

Sebastian Halbig, Tony Zorman

We compare closed and rigid monoidal categories. Closedness is defined by the tensor product having a right adjoint: the internal hom functor. Rigidity, on the other hand, generali…

math.QA2022★ 1 cited

Pivotality, twisted centres and the anti-double of a Hopf monad

Sebastian Halbig, Tony Zorman

Finite-dimensional Hopf algebras admit a correspondence between so-called pairs in involution, one-dimensional anti-Yetter--Drinfeld modules and algebra isomorphisms between the Dr…