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20212026
most citedA Drinfeld type presentation of affine quantum groups II: split BCFG type

13 citations · 35 across the 14 of their papers we have counts for

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9 papers · 1 filter

math.QA2026

Relative braid group symmetries on quantum supersymmetric pairs of type sAIII

Yaolong Shen, Weinan Zhang

We introduce the relative Coxeter groupoid and construct intrinsic relative braid group symmetries for quantum supersymmetric pairs of type sAIII. These symmetries are constructed…

math.QA2025

Quantum Howe duality and Schur duality of type AIII

Weinan Zhang

We establish a new connection between the iHowe duality of type AIII established by Luo-Xu and the iSchur duality established by Bao-Wang. We show that iweight space i…

math.QA2025

Relative braid group symmetries on modified iquantum groups and their modules

Weiqiang Wang, Weinan Zhang

We present a comprehensive generalization of Lusztig's braid group symmetries for quasi-split iquantum groups. Specifically, we give 3 explicit rank one formulas for symmetries act…

math.QA2024★ 2 cited

A Drinfeld type presentation of twisted Yangians of quasi-split type

Kang Lu, Weinan Zhang

We formulate a family of algebras, twisted Yangians (of simply-laced quasi-split type) in Drinfeld type current generators and defining relations. These new algebras admit PBW type…

math.QA2024★ 4 cited

Affine quantum groups and twisted Yangians in Drinfeld presentations

Kang Lu, Weiqiang Wang, Weinan Zhang

We formulate a family of algebras, twisted Yangians (of split type) in current generators and relations, via a degeneration of the Drinfeld presentation of affine quantum g…

math.QA2023

Braid group action and quasi-split affine quantum groups II: higher rank

Ming Lu, Weiqiang Wang, Weinan Zhang

This paper studies quantum symmetric pairs associated with quasi-split Satake diagrams of affine type $A_{2r-1}, D_r, E_{6}…

math.QA2023★ 2 cited

A Drinfeld type presentation of twisted Yangians

Kang Lu, Weiqiang Wang, Weinan Zhang

We develop a Gauss decomposition approach to establish a Drinfeld type current presentation for Olshanski's twisted Yangians associated to the orthogonal Lie algebras (also called…

math.QA2022★ 6 cited

Relative braid group symmetries on quantum groups of Kac-Moody type

Weinan Zhang

Recently, relative braid group actions on quantum groups of arbitrary finite types have been constructed by Wang and the author. In this paper, we extend that construction…

math.QA2022★ 2 cited

An intrinsic approach to relative braid group symmetries on quantum groups

Weiqiang Wang, Weinan Zhang

We initiate a general approach to the relative braid group symmetries on (universal) quantum groups, arising from quantum symmetric pairs of arbitrary finite types, and the…