The Laplace-Beltrami operator on the embedded torus
The Laplace-Beltrami operator on the embedded torus
复制标题
嵌入式环面上的 Laplace-Beltrami 算子
DOI:
10.1016/j.jde.2020.09.023
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发表时间:
2021
影响因子:
2.4
通讯作者:
H. Volkmer
中科院分区:
文献类型:
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作者:
H. Volkmer
The eigenvalues of the Laplace-Beltrami operator on the torus embedded in three-dimensional euclidean space are investigated. These eigenvalues are determined by the eigenvalues of Sturm-Liouville problems with separated boundary conditions. Eigenvalues are approximated by those of generalized eigenvalue problems involving tridiagonal matrices. A non-coexistence result is proved. The behavior of eigenvalues is studied when the ratio of inner and outer radius of the torus approaches zero or one.