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Generic mean curvature flows with cylindrical singularities I: the normal forms and nondegeneracy

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arxiv 2210.00419 v3 pith:BVH6DTDH submitted 2022-10-02 math.DG math.APmath.DS

classification math.DGmath.APmath.DS
keywords cylindricalmeancurvaturenormalsingularitiescylinderflowform
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abstract

This paper studies the dynamics of mean curvature flow as it approaches a cylindrical singularity. We proved that the rescaled mean curvature flow converging to a smooth generalized cylinder can be written as a graph over the cylinder in a ball of radius $K\sqrt{t}$, and a normal form of the asymptotics. Using the normal form, we can define the nondegeneracy of cylindrical singularities, and we show that nondegenerate cylindrical singularities are isolated in space, have a mean convex neighborhood, and are type-I.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Singularities of mean curvature flow with bounded mean curvature and Morse index

    math.DG 2025-01 conditional novelty 8.0 of 10

    For closed smooth mean curvature flows in R^{n+1}, 3≤n≤6, at the first singular time either the mean curvature or the Morse index must blow up.

  2. Regularity of cylindrical singular sets of mean curvature flow

    math.DG 2025-09 conditional novelty 7.0 of 10

    Degenerate cylindrical singular sets of mean curvature flow are locally contained in C^{2,α} submanifolds, with curvature determined by the flow's asymptotic profile.

  3. Passing through nondegenerate singularities in mean curvature flows

    math.DG 2025-01 conditional novelty 7.0 of 10

    Mean curvature flows through nondegenerate cylindrical singularities undergo an isolated, graphical surgery event whose topology change equals an (n-k)-surgery, matching Morse level sets.

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