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

From papers

Let XX be a Kähler–Ricci shrinker with bounded scalar curvature and maximal volume growth. Let (Z0,d0Z)(Z_0,d^Z_0) be the metric boundary produced by the Ricci flow, and let (Z0reg,g0Z)(Z_0^{\operatorname{reg}},g_0^Z) denote its regular part with the induced metric.

Metric cone conjecture. If the Kähler–Ricci shrinker has maximal volume growth, then (Z0,d0Z)(Z_0,d^Z_0) is a metric cone and coincides with the metric completion of (Z0reg,g0Z)(Z_0^{\operatorname{reg}},g_0^Z).

This conjecture predicts conical asymptotic geometry and identifies the metric limit with the completion of its regular Riemannian part. The supplied source gives no resolution status.

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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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