Polarized affine cone conjecture for the Ricci-flow limit of Kähler–Ricci shrinkers

Let XX be a Kähler–Ricci shrinker with bounded scalar curvature. Let Z0Z_0 be the metric boundary produced by the Ricci flow, equipped with the topology induced by d0Zd^Z_0, and let Φ:XZ0\Phi:X\to Z_0 be the associated surjective map. The shrinker has a polarized Fano fibration structure on XX.

Polarized affine cone conjecture. The space Z0Z_0, with the topology induced by d0Zd^Z_0, admits a polarized affine cone structure, and the map Φ\Phi realizes the polarized Fano fibration structure on XX.

This conjecture seeks an algebraic and polarized interpretation of the metric boundary arising from the Ricci flow. The source formulates it as a further conjecture and provides no resolution status.

Sources & referencesView supporting material

Primary source

Yu Li and Junsheng Zhang, “Gromov-Hausdorff Limits of Noncollapsed Kähler-Ricci Flows and the Geometry of Ricci Shrinkers”, arXiv:2607.25644 (2026).

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