Asymptotic convergence for a class of anisotropic curvature flows
Asymptotic convergence for a class of anisotropic curvature flows
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一类各向异性曲率流的渐近收敛
DOI:
10.1016/j.jfa.2022.109460
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发表时间:
2021-03
影响因子:
1.7
通讯作者:
Ruijia Zhang
中科院分区:
文献类型:
--
作者:
Haizhong Li;Botong Xu;Ruijia Zhang
In this paper, by using new auxiliary functions, we study a class of contracting flows of closed, star-shaped hypersurfaces in R n+ 1 with speed r α β σ k 1 β, where σ k is the k-th elementary symmetric polynomial of the principal curvatures, α, β are positive constants and r is the distance from points on the hypersurface to the origin. We obtain convergence results under some assumptions of k, α, β. When k≥ 2, 0< β≤ 1, α≥ β+ k, we prove that the k-convex solution to the flow exists for all time and converges smoothly to a sphere after normalization, in particular, we generalize Li-Sheng-Wang's result from uniformly convex to k-convex. When k≥ 2, β= k, α≥ 2 k, we prove that the k-convex solution to the flow exists for all time and converges smoothly to a sphere after normalization, in particular, we generalize Ling Xiao's result from k= 2 to k≥ 2.
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