Classification of Quiver Hopf Algebras and Pointed Hopf Algebras of Type One
arXiv:0802.3488
Abstract
The quiver Hopf algebras are classified by means of ramification systems with irreducible representations. This leads to the classification of Nichols algebras over group algebras and pointed Hopf algebras of type one.
19 pages; To appear in Bulletin of the Australian Mathematical Society