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Poincaré/Koszul Duality for General Operads (1910.09076v3)
Published 20 Oct 2019 in math.AT
Abstract: We record a result concerning the Koszul dual of the arity filtration on an operad. This result is then used to give conditions under which, for a general operad, the Poincar\'e/Koszul duality arrow of Ayala-Francis is an equivalence. We discuss how the Poincar\'e/Koszul duality arrow for the little $n$-disks operad $\mathcal{E}_n$ relates to their work when combined with the self-Koszul duality of $\mathcal{E}_n$.
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