Non-symmetrizable quantum groups: defining ideals and specialization

Abstract

Two generating sets of the defining ideal of a Nichols algebra of diagonal type are proposed, which are then applied to study the bar involution and the specialization problem of quantum groups associated to non-symmetrizable generalized Cartan matrices.

26 pages, to appear in PRIMS

References in corpus (1)

• The Weyl-Brandt groupoid of a Nichols algebra of diagonal type