Skip to content

On a factorization of graded Hopf algebras using Lyndon words

M. Graña, I. Heckenberger

math.QAarXiv:math/0608678

Abstract

We find a generalization of the restricted PBW basis for pointed Hopf algebras over abelian groups constructed by Kharchenko. We obtain a factorization of the Hilbert series for a wide class of graded Hopf algebras. These factors are parametrized by Lyndon words, and they are the Hilbert series of certain graded Hopf algebras. Key words: graded Hopf algebra, Nichols algebra, Lyndon word

Create a lesson