Extremal problems for Steklov eigenvalues on annuli
Extremal problems for Steklov eigenvalues on annuli
复制标题
环面上 Steklov 特征值的极值问题
DOI:
10.1007/s00526-014-0816-8
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发表时间:
2015
影响因子:
2.1
通讯作者:
Chengjie Yu
中科院分区:
文献类型:
--
作者:
Xu;Luen;Chengjie Yu
We obtain supremum of the $$k$$k-th normalized Steklov eigenvalues of all rotationally symmetric conformal metrics on $$[0,T]\times \mathbb {S}^1$$[0,T]×S1, $$k>1$$k>1. This generalizes the corresponding result of Fraser and Schoen for the case $$k=1$$k=1. We give geometric description in terms of minimal surfaces for metrics attaining the supremum. We obtain some results on the comparison of the normalized Steklov eigenvalues of rotationally symmetric metrics and general conformal metrics on $$[0,T]\times \mathbb {S}^1$$[0,T]×S1. We also construct an example of a conformal metric on $$[0,T]\times \mathbb {S}^1$$[0,T]×S1 whose first normalized Steklov eigenvalue is larger than that of the corresponding rotationally symmetric conformal metric.