The dg–A∞A_\infty module-category equivalence conjecture

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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 A∞A_\infty OS\mathcal{O}_S-algebras. Write D⁡pe⁡(Mod⁡∞,ZA)\operatorname{D}_{\operatorname{pe}}(\operatorname{Mod}_{\infty,\mathbb{Z}}\mathcal{A}) and D⁡pe⁡(Mod⁡ZB)\operatorname{D}_{\operatorname{pe}}(\operatorname{Mod}_{\mathbb{Z}}\mathcal{B}) for the perfect derived categories of strictly unital graded A∞A_\infty-modules and graded dg-modules, respectively. If B\mathcal{B} is graded-quasi-isomorphic to A\mathcal{A}, then the dg–A∞A_\infty module-category equivalence conjecture. There is a P(S)\mathbb{P}(S)-linear equivalence

D⁡pe⁡(Mod⁡∞,ZA)≅D⁡pe⁡(Mod⁡ZB).\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 A∞A_\infty algebra sheaves; the paper states that the conjecture is believed to be true, but does not prove it.

References

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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