287 citations · 1.4k across the 60 of their papers we have counts for
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math.QA2008★ 68 cited
Finite-dimensional pointed Hopf algebras with alternating groups are trivial
N. Andruskiewitsch, F. Fantino, M. Graña +1
It is shown that Nichols algebras over alternating groups A_m, m>4, are infinite dimensional. This proves that any complex finite dimensional pointed Hopf algebra with group of gro…
math.QA2008★ 14 cited
On Nichols algebras over PGL(2,q) and PSL(2,q)
S. Freyre, M. Graña, L. Vendramin
We compute necessary conditions on Yetter-Drinfeld modules over the groups $\mathbf{PGL}(2,q)=\mathbf{PGL}(2,\FF_q)$ and $\mathbf{PSL}(2,q)=\mathbf{PSL}(2,\FF_q)$ to generate finit…