Admissible Coalgebras and Non-cosemisimple Hopf Algebras
arXiv:1809.03342
Abstract
In this paper, we give several necessary conditions for non-cosemisimple coalgebras being admissible. The implications simplify the classification problems for Hopf algebras of dimension 45, 105 and a few others.
arXiv admin note: substantial text overlap with arXiv:1509.05837