Quantum subgroups of a simple quantum group atroots of one

Abstract

Let G be a connected, simply connected, simple complex algebraic group and let be a primitive ℓth root of one, ℓ odd and 3 ł ℓ if G is of type G2. We determine all Hopf algebra quotients of the quantized coordinate algebra ωε(G). Copyright © 2009 Foundation Compositio Mathematica.