Categories of Weight Modules for Unrolled Restricted Quantum Groups at Roots of Unity
Representation Theory
2024-02-07 v3 Quantum Algebra
Abstract
Motivated by connections to the singlet vertex operator algebra in the case, we study the unrolled restricted quantum groups at arbitrary roots of unity with a focus on its category of weight modules. We show that the braid group action on the Drinfeld-Jimbo algebra naturally extends to the unrolled quantum groups and that the category of weight modules is a generically semi-simple ribbon category (previously known only for odd roots) with trivial M\"{u}ger center. Projective covers of simple modules are shown to be self-dual, and some preliminary connections to the higher rank singlet vertex operator algebras are motivated.
Keywords
Cite
@article{arxiv.1910.05922,
title = {Categories of Weight Modules for Unrolled Restricted Quantum Groups at Roots of Unity},
author = {Matthew Rupert},
journal= {arXiv preprint arXiv:1910.05922},
year = {2024}
}
Comments
Added Remark 4.9 and other minor corrections