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- Title
The avoidance principle for noncompact hypersurfaces moving by mean curvature flow.
- Authors
White, Brian
- Abstract
Consider a pair of smooth, possibly noncompact, properly immersed hypersurfaces moving by mean curvature flow, or, more generally, a pair of weak set flows. We prove that if the ambient space is Euclidean space and if the distance between the two surfaces is initially nonzero, then the surfaces remain disjoint at all subsequent times. We prove the same result when the ambient space is a complete Riemannian manifold of nonzero injectivity radius, provided the curvature tensor (of the ambient space) and all its derivatives are bounded.
- Subjects
HYPERSURFACES; CURVATURE; RIEMANNIAN manifolds
- Publication
Calculus of Variations & Partial Differential Equations, 2024, Vol 63, Issue 5, p1
- ISSN
0944-2669
- Publication type
Article
- DOI
10.1007/s00526-024-02725-5