New examples of Willmore submanifolds in the unit sphere via isoparametric functions

New examples of Willmore submanifolds in the unit sphere via isoparametric functions
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DOI:
10.1007/s10455-012-9319-z
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发表时间:
2011-10
影响因子:
0.7
通讯作者:
Zizhou Tang;Wenjiao Yan
Zizhou Tang;Wenjiao Yan
中科院分区:
数学4区
文献类型:
--
作者:
Zizhou Tang;Wenjiao Yan

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一个等距浸入称为Willmore,如果它是Willmore泛函的一个极值子流形,其中S是第二基本形式的范数平方,His是平均曲率。单位球面中Willmore子流形的例子在文献中很少。本文利用FKM型等参函数给出了单位球面中Willmore子流形的一系列新例子。
An isometric immersionis called Willmore if it is an extremal submanifold of the Willmore functional:, whereSis the norm square of the second fundamental form andHis the mean curvature. Examples of Willmore submanifolds in the unit sphere are scarce in the literature. This article gives a series of new examples of Willmore submanifolds in the unit sphere via isoparametric functions of FKM-type.