The homotopy Barr–Beck conjecture for DG-categories

Let A1A_1 and A2A_2 be DG-categories, and let FF and GG be a pair of homotopy adjoint functors between them. Let TT denote the homotopy monad induced by the composite of the adjunction data, and let TT-hoMod(A1)\operatorname{hoMod}(A_1) be the DG-category of strong homotopy modules over TT in A1A_1. Homotopy Barr–Beck conjecture. Under certain assumptions, the DG-categories TT-hoMod(A1)\operatorname{hoMod}(A_1) and A2A_2 are quasi-equivalent. This is intended as a DG-categorical analogue of the Barr–Beck theorem, which identifies a category with the category of modules over the monad induced by an adjunction. The source states the result only under unspecified assumptions, and no resolution status is given.

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Primary source

Sergey Arkhipov and Tina Kanstrup, “Colored DG-operads and homotopy adjunction for DG-categories”, arXiv:1806.10103 (2018).

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