We establish geometric regularity for Type I blow-up limits of the Kähler-Ricci flow based at any sequence of Ricci vertices. As a consequence, the limiting flow is continuous in time in both Gromov-Hausdorff and Gromov-W₁ distances. In particular, the singular sets of each time slice and its tangent cones are closed and of codimension no less than 4.

中文翻译：

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Kähler-Ricci 流爆炸极限的几何规律

我们根据 Ricci 顶点的任何序列为 Kähler-Ricci 流的 I 型放大极限建立了几何规则。因此，极限流在 Gromov-Hausdorff 和 Gromov-W ₁ 距离上都是连续的。特别是，每个时间片及其切线圆锥的奇异集是闭合的，并且共维数不小于 4。