How close is too close for singular mean curvature flows?

Abstract Suppose $$(M^i_t)_{t\in [0,T)}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mrow> <mml:mo>(</mml:mo> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mi>i</mml:mi> </mml:msubsup> <mml:mo>)</mml:mo> </mml:mrow> <mml:mrow> <mml:mi>t</mml:mi> <mml:mo>∈</mml:mo> <mml:mo>[</mml:mo> <mml:mn>0</mml:mn> <mml:mo>,</mml:mo> <mml:mi>T</mml:mi> <mml:mo>)</mml:mo> </mml:mrow> </mml:msub> </mml:math> , $$i=1,2$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>i</mml:mi> <mml:mo>=</mml:mo> <mml:mn>1</mml:mn> <mml:mo>,</mml:mo> <mml:mn>2</mml:mn> </mml:mrow> </mml:math> , are two mean curvature flows in $$\mathbb {R}^{n+1}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow> <mml:mi>R</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>n</mml:mi> <mml:mo>+</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msup> </mml:math> encountering a multiplicity one compact singularity at time T , in such a manner that for every k , the Hausdorff distance between the two flows, $$d_H$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>d</mml:mi> <mml:mi>H</mml:mi> </mml:msub> </mml:math> , satisfies $$d_{H}(M^1_t,M^2_t)/(T-t)^k \rightarrow 0$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>d</mml:mi> <mml:mi>H</mml:mi> </mml:msub> <mml:mrow> <mml:mo>(</mml:mo> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mn>1</mml:mn> </mml:msubsup> <mml:mo>,</mml:mo> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mn>2</mml:mn> </mml:msubsup> <mml:mo>)</mml:mo> </mml:mrow> <mml:mo>/</mml:mo> <mml:msup> <mml:mrow> <mml:mo>(</mml:mo> <mml:mi>T</mml:mi> <mml:mo>-</mml:mo> <mml:mi>t</mml:mi> <mml:mo>)</mml:mo> </mml:mrow> <mml:mi>k</mml:mi> </mml:msup> <mml:mo>→</mml:mo> <mml:mn>0</mml:mn> </mml:mrow> </mml:math> . We demonstrate that $$M^1_t=M^2_t$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mn>1</mml:mn> </mml:msubsup> <mml:mo>=</mml:mo> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mn>2</mml:mn> </mml:msubsup> </mml:mrow> </mml:math> for every t . This generalizes a result of Martin-Hagemayer and Sesum, who proved the case where $$M^1_t$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mn>1</mml:mn> </mml:msubsup> </mml:math> is itself a self-similarly shrinking flow.

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Publication Details

Journal
Calculus of Variations and Partial Differential Equations
Published
2026-07-18
DOI
https://doi.org/10.1007/s00526-026-03403-4
Primary Topic
Geometric Analysis and Curvature Flows
Type
article
Field-Weighted Citation Impact
0.00

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article

How close is too close for singular mean curvature flows?

Or Hershkovits, J. M. Daniels-Holgate
Calculus of Variations and Partial Differential Equations
Geometric Analysis and Curvature Flows
article

How close is too close for singular mean curvature flows?

Or Hershkovits, J. M. Daniels-Holgate
article en

Abstract

Abstract Suppose $$(M^i_t)_{t\in [0,T)}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mrow> <mml:mo>(</mml:mo> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mi>i</mml:mi> </mml:msubsup> <mml:mo>)</mml:mo> </mml:mrow> <mml:mrow> <mml:mi>t</mml:mi> <mml:mo>∈</mml:mo> <mml:mo>[</mml:mo> <mml:mn>0</mml:mn> <mml:mo>,</mml:mo> <mml:mi>T</mml:mi> <mml:mo>)</mml:mo> </mml:mrow> </mml:msub> </mml:math> , $$i=1,2$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mi>i</mml:mi> <mml:mo>=</mml:mo> <mml:mn>1</mml:mn> <mml:mo>,</mml:mo> <mml:mn>2</mml:mn> </mml:mrow> </mml:math> , are two mean curvature flows in $$\mathbb {R}^{n+1}$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow> <mml:mi>R</mml:mi> </mml:mrow> <mml:mrow> <mml:mi>n</mml:mi> <mml:mo>+</mml:mo> <mml:mn>1</mml:mn> </mml:mrow> </mml:msup> </mml:math> encountering a multiplicity one compact singularity at time T , in such a manner that for every k , the Hausdorff distance between the two flows, $$d_H$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>d</mml:mi> <mml:mi>H</mml:mi> </mml:msub> </mml:math> , satisfies $$d_{H}(M^1_t,M^2_t)/(T-t)^k \rightarrow 0$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msub> <mml:mi>d</mml:mi> <mml:mi>H</mml:mi> </mml:msub> <mml:mrow> <mml:mo>(</mml:mo> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mn>1</mml:mn> </mml:msubsup> <mml:mo>,</mml:mo> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mn>2</mml:mn> </mml:msubsup> <mml:mo>)</mml:mo> </mml:mrow> <mml:mo>/</mml:mo> <mml:msup> <mml:mrow> <mml:mo>(</mml:mo> <mml:mi>T</mml:mi> <mml:mo>-</mml:mo> <mml:mi>t</mml:mi> <mml:mo>)</mml:mo> </mml:mrow> <mml:mi>k</mml:mi> </mml:msup> <mml:mo>→</mml:mo> <mml:mn>0</mml:mn> </mml:mrow> </mml:math> . We demonstrate that $$M^1_t=M^2_t$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mn>1</mml:mn> </mml:msubsup> <mml:mo>=</mml:mo> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mn>2</mml:mn> </mml:msubsup> </mml:mrow> </mml:math> for every t . This generalizes a result of Martin-Hagemayer and Sesum, who proved the case where $$M^1_t$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msubsup> <mml:mi>M</mml:mi> <mml:mi>t</mml:mi> <mml:mn>1</mml:mn> </mml:msubsup> </mml:math> is itself a self-similarly shrinking flow.

Calculus of Variations and Partial Differential EquationsVol. 65(8)
University of Maryland, Baltimore (US), Queen Mary University of London (GB), Hebrew University of Jerusalem (IL), University of Maryland, College Park (US)
Engineering and Physical Sciences Research Council, HORIZON EUROPE European Research Council
Openalex Percentile: Top 95%
Geometric Analysis and Curvature Flows
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