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arXiv 1906.02454math.DG
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小能量Willmore流的渐近估计

Asymptotic estimates for the Willmore flow with small energy

Ernst Kuwert, Julian Scheuer

摘要:

Kuwert和Schätzle在2001年证明,如果初始能量很小,Willmore流收敛到一个标准的圆球。在这种情况下,我们证明稳定性估计的重心和二次矩的表面。此外,在余维1中,我们得到了封闭体积和平均中曲率的稳定界。作为直接应用,我们恢复了De Lellis和Müller(2006)的准刚性估计以及Röger和Schätzle(2012)的等周亏损估计,其原始证明使用了不同的方法。

英文摘要:

Kuwert and Schätzle showed in 2001 that the Willmore flow converges to a standard round sphere, if the initial energy is small. In this situation, we prove stability estimates for the barycenter and the quadratic moment of the surface. Moreover, in codimension one we obtain stability bounds for the enclosed volume and averaged mean curvature. As direct applications, we recover a quasi-rigidity estimate due to De Lellis and Müller (2006) and an estimate for the isoperimetric deficit by Röger and Schätzle (2012), whose original proofs used different methods.

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