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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.RT2023
Derived Hall algebras of root categories
Jiayi Chen, Ming Lu, Shiquan Ruan
For a finitary hereditary abelian category , we define a derived Hall algebra of its root category by counting the triangles and using the octahedral axiom, which is p…