English

Discrete quantum subgroups of complex semisimple quantum groups

Quantum Algebra 2023-06-19 v2 Operator Algebras

Abstract

We classify discrete quantum subgroups in the quantum double of the qq-deformation of a compact semisimple Lie group, regarded as the complexification. We also record their classifications in some variants of quantum groups. Along the way, we show that quantum doubles of non-Kac type compact quantum groups do not admit the quantum analog of lattices considered by Brannan-Chirvasitu-Viselter.

Keywords

Cite

@article{arxiv.2303.14656,
  title  = {Discrete quantum subgroups of complex semisimple quantum groups},
  author = {Kan Kitamura},
  journal= {arXiv preprint arXiv:2303.14656},
  year   = {2023}
}

Comments

15 pages, minor modifications

R2 v1 2026-06-28T09:34:00.439Z