On the mean curvature flow of submanifolds in the standard Gaussian space
On the mean curvature flow of submanifolds in the standard Gaussian space
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标准高斯空间中子流形的平均曲率流
DOI:
10.1007/s00025-020-01301-5
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发表时间:
2020-10
影响因子:
2.2
通讯作者:
Zhang Di
中科院分区:
文献类型:
--
作者:
Li An-Min;Li Xingxiao;Zhang Di
In this paper, we study the regular geometric behavior of the mean curvature flow (MCF) of submanifolds in the standard Gaussian metric space (Rm+p, e(-vertical bar x vertical bar 2)/m (g) over bar) where (Rm+p, (g) over bar) is the standard Euclidean space and x. Rm+p denotes the position vector. Note that, as a special Riemannian manifold, (Rm+p, e(-vertical bar x vertical bar 2)/m (g) over bar) has an unbounded curvature. Up to a family of diffeomorphisms on M-m, the mean curvature flow we considered here turns out to be equivalent to a special variation of the "conformal mean curvature flow" which we have introduced previously. The main theorem of this paper indicates, geometrically, that any immersed compact submanifold in the standard Gaussian space, with the square norm of the position vector being not equal to m, will blow up at a finite time under the mean curvature flow, in the sense that either the position or the curvature blows up to infinity; Moreover, by this main theorem, the interval [0, T) of time in which the flowing submanifolds keep regular has some certain optimal upper bound, and it can reach the bound if and only if the initial submanifold either shrinks to the origin or expands uniformly to infinity under the flow. Besides the main theorem, we also obtain some other interesting conclusions which not only play their key roles in proving the main theorem but also characterize in part the geometric behavior of the flow, being of independent significance.
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影响因子:
0.6
作者:
Liu, Ya-Nan;Jian, Huai-Yu
通讯作者:
Jian, Huai-Yu
DOI:
10.4310/cag.2013.v21.n3.a8
发表时间:
2011-05
期刊:
arXiv: Differential Geometry
影响因子:
--
作者:
Kefeng Liu;Hong-wei Xu;Fei Ye;Entao Zhao
通讯作者:
Kefeng Liu;Hong-wei Xu;Fei Ye;Entao Zhao
DOI:
10.1515/crll.2002.075
发表时间:
2002-01
期刊:
Crelle's Journal
影响因子:
--
作者:
O. C. Schnürer;Knut Smoczyk
通讯作者:
O. C. Schnürer;Knut Smoczyk
DOI:
--
发表时间:
2012-03
期刊:
arXiv: Differential Geometry
影响因子:
--
作者:
Kefeng Liu;Hong-wei Xu;Entao Zhao
通讯作者:
Kefeng Liu;Hong-wei Xu;Entao Zhao
DOI:
10.1007/bf02884020
发表时间:
2003-01
期刊:
Science in China Series A: Mathematics
影响因子:
--
作者:
H. Jian;Xingwang Xu
通讯作者:
H. Jian;Xingwang Xu