On Certain Translation Invariant Properties of Interior Transmission Spectra and Their Doppler’s Effect

We study the translation invariant properties of the eigenvalues of scattering transmission problem. We examine the functional derivative of the eigenvalue density function Δ(x^) to the defining index of refraction n(x). By the limit behaviors in frequency sphere, we prove some results on the invers...

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Main Author: Lung-Hui Chen
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Advances in Mathematical Physics
Online Access:http://dx.doi.org/10.1155/2017/3838507
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author Lung-Hui Chen
author_facet Lung-Hui Chen
author_sort Lung-Hui Chen
collection DOAJ
description We study the translation invariant properties of the eigenvalues of scattering transmission problem. We examine the functional derivative of the eigenvalue density function Δ(x^) to the defining index of refraction n(x). By the limit behaviors in frequency sphere, we prove some results on the inverse uniqueness of index of refraction. In physics, Doppler’s effect connects the variation of the frequency/eigenvalue and the motion velocity/variation of position variable. In this paper, we proved the functional derivative ∂rΔx^=(1+nrx^)/π.
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institution Kabale University
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spelling doaj-art-43ec76e982ea4e1fa747ba821089e94b2025-08-20T03:36:06ZengWileyAdvances in Mathematical Physics1687-91201687-91392017-01-01201710.1155/2017/38385073838507On Certain Translation Invariant Properties of Interior Transmission Spectra and Their Doppler’s EffectLung-Hui Chen0Department of Mathematics, National Chung Cheng University, 168 University Rd., Min-Hsiung, Chia-Yi County 621, TaiwanWe study the translation invariant properties of the eigenvalues of scattering transmission problem. We examine the functional derivative of the eigenvalue density function Δ(x^) to the defining index of refraction n(x). By the limit behaviors in frequency sphere, we prove some results on the inverse uniqueness of index of refraction. In physics, Doppler’s effect connects the variation of the frequency/eigenvalue and the motion velocity/variation of position variable. In this paper, we proved the functional derivative ∂rΔx^=(1+nrx^)/π.http://dx.doi.org/10.1155/2017/3838507
spellingShingle Lung-Hui Chen
On Certain Translation Invariant Properties of Interior Transmission Spectra and Their Doppler’s Effect
Advances in Mathematical Physics
title On Certain Translation Invariant Properties of Interior Transmission Spectra and Their Doppler’s Effect
title_full On Certain Translation Invariant Properties of Interior Transmission Spectra and Their Doppler’s Effect
title_fullStr On Certain Translation Invariant Properties of Interior Transmission Spectra and Their Doppler’s Effect
title_full_unstemmed On Certain Translation Invariant Properties of Interior Transmission Spectra and Their Doppler’s Effect
title_short On Certain Translation Invariant Properties of Interior Transmission Spectra and Their Doppler’s Effect
title_sort on certain translation invariant properties of interior transmission spectra and their doppler s effect
url http://dx.doi.org/10.1155/2017/3838507
work_keys_str_mv AT lunghuichen oncertaintranslationinvariantpropertiesofinteriortransmissionspectraandtheirdopplerseffect