English

Three infinite families of reflection Hopf algebras

Rings and Algebras 2020-08-14 v2

Abstract

Let HH be a semisimple Hopf algebra acting on an Artin-Schelter regular algebra AA, homogeneously, inner-faithfully, preserving the grading on AA, and so that AA is an HH-module algebra. When the fixed subring AHA^H is also AS regular, thus providing a generalization of the Chevalley-Shephard-Todd Theorem, we say that HH is a reflection Hopf algebra for AA. We show that each of the semisimple Hopf algebras H2n2H_{2n^2} of Pansera, and A4m\mathcal{A}_{4m} and B4m\mathcal{B}_{4m} of Masuoka is a reflection Hopf algebra for an AS regular algebra of dimension 2 or 3.

Keywords

Cite

@article{arxiv.1810.12935,
  title  = {Three infinite families of reflection Hopf algebras},
  author = {Luigi Ferraro and Ellen Kirkman and W. Frank Moore and Robert Won},
  journal= {arXiv preprint arXiv:1810.12935},
  year   = {2020}
}

Comments

Some minor corrections