Abstract
Let M n be a smooth, compact manifold without boundary, and F 0: M n → R n+1 a smooth immersion which is convex. The one-parameter families F(·, t): M n × [0, T) → R n+1 of hypersurfaces M n t = F(·, t)(M n) satisfy an initial value problem dt/dF(·, t) = −H k(·, t)ν(·, t), F(·, 0) = F 0(·), where H is the mean curvature and ν(·, t) is the outer unit normal at F(·, t), such that −H ν = \( \overrightarrow H \) is the mean curvature vector, and k > 0 is a constant. This problem is called H k-flow. Such flow will develop singularities after finite time. According to the blow-up rate of the square norm of the second fundamental forms, the authors analyze the structure of the rescaled limit by classifying the singularities as two types, i.e., Type I and Type II. It is proved that for Type I singularity, the limiting hypersurface satisfies an elliptic equation; for Type II singularity, the limiting hypersurface must be a translating soliton.
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Project supported by the National Natural Science Foundation of China (Nos. 10771189, 10831008)
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Sheng, W., Wu, C. On asymptotic behavior for singularities of the powers of mean curvature flow. Chin. Ann. Math. Ser. B 30, 51–66 (2009). https://doi.org/10.1007/s11401-007-0448-9
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DOI: https://doi.org/10.1007/s11401-007-0448-9