Cyclicity for categorified quantum groups

Published 15 Jun 2015 in math.QA and math.RT | (1506.04671v1)

Abstract: We equip the categorified quantum group attached to a KLR algebra and an arbitrary choice of scalars with duality functor which is cyclic, that is, such that f=f^** for all 2-morphisms f. This is accomplished via a modified diagrammatic formalism.

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