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

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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.

References

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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