Coideal subalgebras of quantum at roots of unity
arXiv:2410.10064 · doi:10.1016/j.jpaa.2025.107923
Abstract
We classify right coideal subalgebras of the finite-dimensional quotient of the quantized enveloping algebra and that of the quantized coordinate algebra at a root of unity of odd order. All those coideal subalgebras are described by generators and relations.
32 pages