Limiting eigenfunctions of Sturm–Liouville operators subject to a spectral flow
Limiting eigenfunctions of Sturm–Liouville operators subject to a spectral flow
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受谱流影响的 Sturm-Liouville 算子的极限本征函数
DOI:
10.1007/s40316-020-00142-6
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Marzuola, Jeremy L.
中科院分区:
文献类型:
--
作者:
Beck, Thomas;Bors, Isabel;Conte, Grace;Cox, Graham;Marzuola, Jeremy L.
We examine the spectrum of a family of Sturm–Liouville operators with regularly spaced delta function potentials parametrized by increasing strength. The limiting behavior of the eigenvalues under this spectral flow was described by Berkolaiko et al. (Lett Math Phys 109(7):1611–1623, 2019), where it was used to study the nodal deficiency of Laplacian eigenfunctions. Here we consider the eigenfunctions of these operators. In particular, we give explicit formulas for the limiting eigenfunctions, and also characterize the eigenfunctions and eigenvalues for all values for the spectral flow parameter (not just in the limit). We also develop spectrally accurate numerical tools for comparison and visualization.
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影响因子:
0.8
作者:
Pierre B'erard;B. Helffer;R. Kiwan
通讯作者:
R. Kiwan
DOI:
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发表时间:
2017
期刊:
影响因子:
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作者:
A. Girouard;D. Jakobson;M. Levitin;N. Nigam;I. Polterovich;Frédéric Rochon
通讯作者:
Frédéric Rochon
DOI:
10.1512/iumj.2017.66.6129
发表时间:
2015
期刊:
arXiv: Analysis of PDEs
影响因子:
--
作者:
G. Cox;C. Jones;J. Marzuola
通讯作者:
J. Marzuola
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
Kuan Xu;Nicholas Hale
通讯作者:
Nicholas Hale
DOI:
10.5802/crmath.304
发表时间:
2021-03
期刊:
Comptes Rendus. Mathématique
影响因子:
--
作者:
Vivek Shende
通讯作者:
Vivek Shende