Topological and algebraic perfection conjecture for the formal punctured neighborhood of a coherent derived category

Let XX be a proper scheme over a perfect field k\mathrm k. Write Perftop(Dcohb(X)^)\operatorname{Perf}_{\mathrm{top}}(\widehat{{\mathfrak D}^b_{coh}(X)}_{\infty}) and Perfalg(Dcohb(X)^)\operatorname{Perf}_{\mathrm{alg}}(\widehat{{\mathfrak D}^b_{coh}(X)}_{\infty}) for the topological and algebraic perfect subcategories of the formal punctured neighborhood at infinity of Dcohb(X){\mathfrak D}^b_{coh}(X). Topological-algebraic perfection conjecture. One has

Perftop(Dcohb(X)^)=Perfalg(Dcohb(X)^).\operatorname{Perf}_{\mathrm{top}}(\widehat{{\mathfrak D}^b_{coh}(X)}_{\infty})=\operatorname{Perf}_{\mathrm{alg}}(\widehat{{\mathfrak D}^b_{coh}(X)}_{\infty}).

The conjecture asserts that the topological and algebraic notions of perfect objects coincide in this formal categorical neighborhood; the paper has established the corresponding algebraic description, but equality with the topological subcategory remains conjectural.

Sources & referencesView supporting material

Primary source

Alexander I. Efimov, “Categorical formal punctured neighborhood of infinity, I”, arXiv:1711.00756 (2017).

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