Stability of spherical collapse under mean curvature flow

Details Stability of spherical collapse under mean curvature flow Stability of spherical collapse under mean curvature flow

2011-10-24

arxiv.org/abs/1110.5378v3

Mathematics

Differential Geometry

Scientific paper

We study the mean curvature flow of hypersurfaces in $\R^{n+1}$, with initial surfaces sufficiently close to the standard $n$-dimensional sphere. The closeness is in the Sobolev norm with the index greater than $\frac{n}{2}+1$ and therefore it does not impose restrictions of the mean curvature of the initial surface. We show that the solution of such a flow collapses to a point, $z_*$, in a finite time, $t_*$, approaching exponentially fast the spheres of radii $\sqrt{2n(t_*-t)}$, centered at $z(t)$, with the latter converging to $z_*$. Keywords: mean curvature flow, evolution of surfaces, collapse of surfaces, asymptotic stability, asymptotic dynamics, dynamics of surfaces, mean curvature soliton, nonlinear parabolic equation.

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