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Superized Troesch complexes and cohomology for strict polynomial superfunctors (2112.08476v1)
Published 15 Dec 2021 in math.RT and math.KT
Abstract: We adapt a construction due to Troesch to the category of strict polynomial superfunctors in order to construct complexes of injective objects whose cohomology is isomorphic to Frobenius twists of the (super)symmetric power functors. We apply these complexes to construct injective resolutions of the even and odd Frobenius twist functors, to investigate the structure of the Yoneda algebra of the Frobenius twist functor, and to compute other extension groups between strict polynomial superfunctors.
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