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A new characterization of submanifolds with parallel mean curvature vector in Sn+p

机译:Sn + p中具有平行平均曲率向量的子流形的新表征

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References(8) In this work we will consider compact submanifold Mn immersed in the Euclidean sphere Sn+p with parallel mean curvature vector and we introduce a Schrödinger operator L=−Δ+V, where Δ stands for the Laplacian whereas V is some potential on Mn which depends on n, p and h that are respectively, the dimension, codimension and mean curvature vector of Mn. We will present a gap estimate for the first eigenvalue μ1 of L, by showing that either μ1=0 or μ1≤−n(1+H2). As a consequence we obtain new characterizations of spheres, Clifford tori and Veronese surfaces that extend a work due to Wu [W] for minimal submanifolds.
机译:参考文献(8)在这项工作中,我们将考虑浸入具有平行平均曲率向量的欧氏球体Sn + p中的紧子流形Mn,并引入Schrödinger算子L =-Δ+ V,其中Δ表示拉普拉斯算子,而V表示某些势能取决于Mn,Mn取决于n,p和h,分别是Mn的尺寸,余维和平均曲率向量。通过显示μ1= 0或μ1≤-n(1 + H2),我们将给出L的第一个特征值μ1的缺口估计。结果,我们获得了球体,Clifford花托和Veronese表面的新特征,这些特征扩展了因Wu [W]而导致的工作,从而使子流形最小。

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