Separable cowreaths in higher dimension
Quantum Algebra
2025-06-24 v1 Category Theory
Rings and Algebras
Abstract
In this paper we present an infinite family of (h-)separable cowreaths with increasing dimension. Menini and Torrecillas proved in [20] that for , a four-dimensional Clifford algebra, and , Sweedler's Hopf algebra, the cowreath is always (h-)separable. We show how to produce similar examples in higher dimension by considering a -dimensional Clifford algebra and , a suitable pointed Hopf algebra that generalizes . We adopt the approach pursued in [19], requiring that the separability morphism be of a simplified form, which in turn forces the defining scalars to satisfy further conditions.
Cite
@article{arxiv.2506.18762,
title = {Separable cowreaths in higher dimension},
author = {Fabio Renda},
journal= {arXiv preprint arXiv:2506.18762},
year = {2025}
}
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32 Pages