Two generating sets of the dening ideal of a Nichols algebra of diagonal type were proposed, which are then applied to study the bar involution and the specialization problem for quantum groups associated to non-symmetrizable generalized Cartan matrices.
Cite this article
Xin Fang, Non-symmetrizable Quantum Groups: Defining Ideals and Specialization. Publ. Res. Inst. Math. Sci. 50 (2014), no. 4, pp. 663–694DOI 10.4171/PRIMS/146