Spectral properties of the inhomogeneous Drude-Lorentz model with dissipation
Spectral properties of the inhomogeneous Drude-Lorentz model with dissipation
复制标题
具有耗散的非齐次 Drude-Lorentz 模型的谱特性
DOI:
10.1016/j.jde.2022.11.052
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发表时间:
2023
影响因子:
2.4
通讯作者:
Ferraresso F
中科院分区:
文献类型:
--
作者:
Ferraresso F
We establish spectral enclosures and spectral approximation results for the inhomogeneous lossy Drude-Lorentz system with purely imaginary poles, in a possibly unbounded Lipschitz domain of R 3. Under the assumption that the coefficients θ e, θ m of the material are asymptotically constant at infinity, we prove that spectral pollution due to domain truncation can lie only in the essential numerical range of a curl curl 0− f (ω) pencil. As an application, we consider a conducting metamaterial at the interface with the vacuum; we prove that the complex eigenvalues with non-trivial real part lie outside the set of spectral pollution. We believe this is the first result of enclosure of spectral pollution for the Drude-Lorentz model without assumptions of compactness on the resolvent of the underlying Maxwell operator.
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影响因子:
1.3
作者:
P. Ola
通讯作者:
P. Ola
影响因子:
1.1
作者:
Sabine Bogli
通讯作者:
Sabine Bogli
影响因子:
2.9
作者:
C. Weber;P. Werner
通讯作者:
C. Weber;P. Werner
DOI:
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发表时间:
2014
期刊:
影响因子:
--
作者:
A. Dhia;L. Chesnel;P. Ciarlet
通讯作者:
P. Ciarlet
影响因子:
0.8
作者:
通讯作者:
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