A duality between scattering poles and transmission eigenvalues in scattering theory
A duality between scattering poles and transmission eigenvalues in scattering theory
复制标题
散射理论中散射极点与传输特征值的对偶性
DOI:
10.1098/rspa.2020.0612
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发表时间:
2020
期刊:
影响因子:
--
通讯作者:
Haddar, Houssem
中科院分区:
文献类型:
--
作者:
Cakoni, Fioralba;Colton, David;Haddar, Houssem
In this paper, we develop a conceptually unified approach for characterizing and determining scattering poles and interior eigenvalues for a given scattering problem. Our approach explores a duality stemming from interchanging the roles of incident and scattered fields in our analysis. Both sets are related to the kernel of the relative scattering operator mapping incident fields to scattered fields, corresponding to the exterior scattering problem for the interior eigenvalues and the interior scattering problem for scattering poles. Our discussion includes the scattering problem for a Dirichlet obstacle where duality is between scattering poles and Dirichlet eigenvalues, and the inhomogeneous scattering problem where the duality is between scattering poles and transmission eigenvalues. Our new characterization of the scattering poles suggests a numerical method for their computation in terms of scattering data for the corresponding interior scattering problem.
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DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
C. Labreuche
通讯作者:
C. Labreuche
DOI:
--
发表时间:
1972
期刊:
影响因子:
--
作者:
J. Ralston
通讯作者:
J. Ralston
DOI:
10.3934/ipi.2017017
发表时间:
2016
期刊:
arXiv: Analysis of PDEs
影响因子:
--
作者:
V. Petkov;G. Vodev
通讯作者:
G. Vodev
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
C. Labreuche
通讯作者:
C. Labreuche
影响因子:
1.9
作者:
C. Labreuche
通讯作者:
C. Labreuche