English

Yetter-Drinfeld modules for group-cograded Hopf quasigroups

Rings and Algebras 2021-12-30 v2

Abstract

Let HH be a crossed group-cograded Hopf quasigroup. We first introduce the notion of pp-Yetter-Drinfeld quasimodule over HH. If the antipode of HH is bijective, we show that the category YDQ(H)\mathscr Y\mathscr D\mathscr Q(H) of Yetter-Drinfeld quasimodules over HH is a crossed category, and the subcategory YD(H)\mathscr Y\mathscr D(H) of Yetter-Drinfeld modules is a braided crossed category.

Keywords

Cite

@article{arxiv.2112.08046,
  title  = {Yetter-Drinfeld modules for group-cograded Hopf quasigroups},
  author = {Huili Liu and Tao Yang and Lingli Zhu},
  journal= {arXiv preprint arXiv:2112.08046},
  year   = {2021}
}

Comments

19pages. Add a mirror structure and modify some typos. Comments are welcomed

R2 v1 2026-06-24T08:18:15.408Z