3 papers
math.GR2025
Subracks and second homology of the conjugacy classes of finite projective special linear groups of degree two
Istvan Heckenberger, Fengchang Li
We describe the subracks of the conjugacy classes of based on Dickson's theorem on subgroups of . All minimal non-abelian subracks of $\mathr…
math.QA2024
Pointed Hopf algebras of odd dimension and Nichols algebras over solvable groups
N. Andruskiewitsch, I. Heckenberger, L. Vendramin
We classify finite-dimensional Nichols algebras of Yetter-Drinfeld modules with indecomposable support over finite solvable groups in characteristic 0, using a variety of methods i…
math.RT2024
Finite-dimensional Nichols algebras of simple Yetter-Drinfeld modules (over groups) of prime dimension
I. Heckenberger, E. Meir, L. Vendramin
Over fields of characteristic zero, we determine all absolutely irreducible Yetter-Drinfeld modules over groups that have prime dimension and yield a finite-dimensional Nichols alg…