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Finite GK-Dimensional pre-Nichols algebras of super and standard type

We prove that finite GK-dimensional pre-Nichols algebras of super and standard type are quotients of the corresponding distinguished pre-Nichols algebras, except when the braiding matrix is of type super A and the dimension of the braided vector space is three. For these two exceptions we explicitly construct substitutes as braided central extensions of the corresponding pre-Nichols algebras by a polynomial ring in one variable. Via bosonization this gives new examples of finite GK-dimensional Hopf algebras.

preprint2020arXivOpen access
Iván AngionoEmiliano CampagnoloGuillermo Sanmarco
math.QAmath.RA
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Iván AngionoEmiliano CampagnoloGuillermo Sanmarco

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