Paper · Nov 30, 2022
The quermassintegral preserving mean curvature flow in the sphere
As on arXiv
Abstract
We introduce a mean curvature flow with global term of convex hypersurfaces in the sphere, for which the global term can be chosen to keep any quermassintegral fixed. Then, starting from a strictly convex initial hypersurface, we prove that the flow exists for all times and converges smoothly to a geodesic sphere. This provides a workaround to an issue present in the volume preserving mean curvature flow in the sphere introduced by Huisken in 1987. We also classify solutions for some constant curvature type equations in space forms, as well as solitons in the sphere and in the upper branch of the De Sitter space.
Comments: 35 pages
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Geometric -stability of geodesic spheres under volume-preserving mean curvature flow
Topics Sphere theorems, Volume-preserving & constrained flows, Long-time existence & convergence · Same author Esther Cabezas-Rivas · Shared terms “geodesic sphere”, “initial hypersurface”, “space forms”
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The quermassintegral preserving curvature flow for horo-convex hypersurfaces in the sphere
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Topics Volume-preserving & constrained flows, Long-time existence & convergence · Shared terms “initial hypersurface”, “strictly convex”, “flow exists”
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Topics Sphere theorems, Geometric inequalities, Long-time existence & convergence · Shared terms “quermassintegral preserving”, “geodesic sphere”, “strictly convex”
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Capillary quermassintegral inequalities in the unit ball
Topics Geometric inequalities · Same author Julian Scheuer · Shared terms “quermassintegral”
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Stability of the area preserving mean curvature flow in asymptotic Schwarzschild space
Topics Sphere theorems, Volume-preserving & constrained flows, Long-time existence & convergence · Shared terms “space forms”, “flow exists”, “Huisken”
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Stability of volume and area preserving mean curvature flow in asymptotic Schwarzschild space
Topics Geometric inequalities, Volume-preserving & constrained flows, Long-time existence & convergence · Shared terms “initial hypersurface”, “converges smoothly”, “flow exists”
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Topics Volume-preserving & constrained flows, Long-time existence & convergence · Same author Esther Cabezas-Rivas · Shared terms “constant curvature”, “convex initial”
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Background reading
The guides for the topics of this paper: what each idea is, why it matters, and the papers to read first.
In the guidebook
- 11A.11Hamilton’s 1982 Theorem
Positive Ricci curvature in dimension 3 flows to a round metric.
- 6A.10Curve Shortening and the First Geometric Flows
Shrinking circles, grim reapers, neckpinches and Huisken’s monotonicity, seen in the plane.