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- Title
Convex mean curvature flow with a forcing term in direction of the position vector.
- Authors
Li, Guang; Mao, Jing; Wu, Chuan
- Abstract
A smooth, compact and strictly convex hypersurface evolving in ℝ along its mean curvature vector plus a forcing term in the direction of its position vector is studied in this paper. We show that the convexity is preserving as the case of mean curvature flow, and the evolving convex hypersurfaces may shrink to a point in finite time if the forcing term is small, or exist for all time and expand to infinity if it is large enough. The flow can converge to a round sphere if the forcing term satisfies suitable conditions which will be given in the paper. Long-time existence and convergence of normalization of the flow are also investigated.
- Subjects
CONVEX domains; VECTOR analysis; HYPERSURFACES; STOCHASTIC convergence; EXISTENCE theorems; MATHEMATICAL analysis
- Publication
Acta Mathematica Sinica, 2012, Vol 28, Issue 2, p313
- ISSN
1439-8516
- Publication type
Article
- DOI
10.1007/s10114-012-0037-z