Log-resolution conjecture for schemes over local quasi-excellent rings

Let RR be a local quasi-excellent ring with maximal ideal mR\mathfrak{m}_R, and let XX be a reduced scheme of finite type over RR. Write

Xs=X×SpecRSpec(R/mR).X_s=X\times_{\operatorname{Spec}R}\operatorname{Spec}(R/\mathfrak{m}_R).

A morphism f:X~Xf:\tilde{X}\to X is required to be a blowup in a nowhere dense center ZZ.

Log-resolution conjecture. There exists such a morphism f:X~Xf:\tilde{X}\to X for which X~\tilde{X} is a regular scheme and X~s\tilde{X}_s is a normal crossings divisor.

This is the strong form of the expected converse to Grothendieck's implication that universal resolution of singularities over a ring forces the ring to be quasi-excellent. The source presents the assertion as expected; its status is left open here.

Sources & referencesView supporting material

Primary source

Konstantinos Kartas, “Diophantine problems over tamely ramified fields”, arXiv:2103.14646 (2022).

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