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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 (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.
Keywords
volume-preserving mean curvature flow, spherical geometry
Mathematical Subject Classification
Primary: 53C21, 53E10
Milestones
Received: 5 December 2022
Accepted: 31 August 2023
Published: 21 November 2024
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