The dg–AA_\infty module-category equivalence conjecture

Let SS be the underlying scheme, and let B\mathcal{B} be a sheaf of Z\mathbb{Z}-graded differential-graded OS\mathcal{O}_S-algebras and A\mathcal{A} a sheaf of Z\mathbb{Z}-graded AA_\infty OS\mathcal{O}_S-algebras. Write Dpe(Mod,ZA)\operatorname{D}_{\operatorname{pe}}(\operatorname{Mod}_{\infty,\mathbb{Z}}\mathcal{A}) and Dpe(ModZB)\operatorname{D}_{\operatorname{pe}}(\operatorname{Mod}_{\mathbb{Z}}\mathcal{B}) for the perfect derived categories of strictly unital graded AA_\infty-modules and graded dg-modules, respectively. If B\mathcal{B} is graded-quasi-isomorphic to A\mathcal{A}, then the dg–AA_\infty module-category equivalence conjecture. There is a P(S)\mathbb{P}(S)-linear equivalence

Dpe(Mod,ZA)Dpe(ModZB).\operatorname{D}_{\operatorname{pe}}(\operatorname{Mod}_{\infty,\mathbb{Z}}\mathcal{A})\cong \operatorname{D}_{\operatorname{pe}}(\operatorname{Mod}_{\mathbb{Z}}\mathcal{B}).

Such an equivalence would identify the perfect module categories associated with quasi-isomorphic graded dg and AA_\infty algebra sheaves; the paper states that the conjecture is believed to be true, but does not prove it.

Sources & referencesView supporting material

Primary source

Matthew Ballard, Dragos Deliu, David Favero, M. Umut Isik and Ludmil Katzarkov, “On the Derived Categories of Degree d Hypersurface Fibrations”, arXiv:1409.5568 (2014).

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