The smooth-normalization conjecture for varieties

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Let XX be an algebraic or analytic variety. A smooth blowing-up is a blowing-up with smooth centre, and it is admissible when it satisfies the local normal-crossings and Hilbert–Samuel conditions specified in the source. Write XncX^{\mathrm{nc}} for the normal-crossings locus of XX. Smooth-normalization conjecture. There is a finite composite of admissible smooth blowings-up

σ:X′→X,\sigma:X'\to X,

preserving XncX^{\mathrm{nc}}, such that X′X' has smooth normalization. In the analytic case, the morphism is understood over a given relatively compact open subset of XX. This would provide a controlled partial desingularization while leaving the normal-crossings locus unchanged; the paper presents it as the main conjectural goal and does not establish it in full generality.

References

Primary source

André Belotto da Silva, Edward Bierstone and Ramon Ronzon Lavie, “Partial desingularization”, arXiv:2211.15713 (2023).

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