3 citations · 3 across the 3 of their papers we have counts for
3 papers
math.QA2004
Triangular braidings and pointed Hopf algebras
Stefan Ufer
We consider an interesting class of braidings defined by a combinatorial property in an earlier paper. We show that it consists exactly of those braidings that come from certain Ye…
math.QA2004★ 3 cited
Nichols algebras of U_q(g)-modules
Stefan Ufer
A technique is developed to reduce the investigation of Nichols algebras of integrable U_q(g)-modules to the investigation of Nichols algebras of braided vector spaces with diagona…
math.QA2003
PBW bases for a class of braided Hopf algebras
Stefan Ufer
We prove the existence of a basis of Poincare-Birkhoff-Witt type for braided Hopf algebras R generated by a braided subspace V of P(R) if the braiding on V fulfils a triangularity…