Categorical equivalences for Hopf trusses and their modules
Abstract
In this paper we introduce the notion of generalized invertible 1-cocycle in a strict braided monoidal category C, and we prove that the category of Hopf trusses is equivalent to the category of generalized invertible 1-cocycles. On the other hand, we also introduce the notions of module for a Hopf truss and for a generalized invertible 1-cocycle. We prove some functorial results involving these categories of modules and we show that the category of modules associated to a generalized invertible 1-cocycle is equivalent to a category of modules associated to a suitable Hopf truss. Finally, assuming that in C we have equalizers, we introduce the notion of Hopf-module in the Hopf truss setting and we obtain the Fundamental Theorem of Hopf modules associated to a Hopf truss.
Keywords
Cite
@article{arxiv.2312.06520,
title = {Categorical equivalences for Hopf trusses and their modules},
author = {Ramón González Rodríguez and Ana Belén Rodríguez Raposo},
journal= {arXiv preprint arXiv:2312.06520},
year = {2025}
}