English

$\imath$quantum groups of split type via derived Hall algebras

Quantum Algebra 2023-03-27 v2 Representation Theory

Abstract

A quantum symmetric pair consists of a quantum group U\mathbf U and its coideal subalgebra Uςı{\mathbf U}^{\imath}_{{\boldsymbol{\varsigma}}} (called an ı\imathquantum group) with parameters ς{\boldsymbol{\varsigma}}. In this note, we use the derived Hall algebras of 1-periodic complexes to realize the ı\imathquantum groups Uςı{\mathbf U}^{\imath}_{{\boldsymbol{\varsigma}}} of split type.

Keywords

Cite

@article{arxiv.2111.09479,
  title  = {$\imath$quantum groups of split type via derived Hall algebras},
  author = {Jiayi Chen and Ming Lu and Shiquan Ruan},
  journal= {arXiv preprint arXiv:2111.09479},
  year   = {2023}
}

Comments

14 pages, minor edits, accepted by Journal of Algebra. arXiv admin note: text overlap with arXiv:2110.02575

R2 v1 2026-06-24T07:42:57.836Z