On the inverse spectral problem for Euclidean triangles
On the inverse spectral problem for Euclidean triangles
复制标题
关于欧氏三角形的反谱问题
DOI:
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发表时间:
2011
期刊:
影响因子:
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通讯作者:
P. Freitas
中科院分区:
文献类型:
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作者:
Pedro R. S. Antunes;P. Freitas
We consider the inverse spectral problem for the Laplace operator on triangles with Dirichlet boundary conditions, providing numerical evidence to the effect that the eigenvalue triplet (λ1,λ2,λ3) is sufficient to determine a triangle uniquely. On the other hand, we show that other combinations such as (λ1,λ2,λ4) will not be enough, and that there will exist at least two triangles with the same values on these triplets.