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Categorification of the internal braid group action for quantum groups I: 2-functoriality (2205.04598v1)
Published 9 May 2022 in math.QA and math.RT
Abstract: We define 2-functors on the categorified quantum group of a simply-laced Kac-Moody algebra that induce Lusztig's internal braid group action at the level of the Grothendieck group.
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