Hopf cocycles associated to pointed and copointed deformations over S3
Quantum Algebra
2024-06-14 v2
Abstract
We present an explicit description of the Hopf 2-cocycles involved in the classification of finite dimensional pointed and copointed Hopf algebras over the symmetric group on three letters. We determine which cocycles are exponentials of Hochschild 2-cocycles and which ones are pure.
Keywords
Cite
@article{arxiv.2203.16342,
title = {Hopf cocycles associated to pointed and copointed deformations over S3},
author = {Agustin Garcia Iglesias and Jose Ignacio Sanchez},
journal= {arXiv preprint arXiv:2203.16342},
year = {2024}
}
Comments
19 pages. We have shortened some of the proofs via the use of GAP. As well, the overall presentation has been improved