1998
DOI: 10.1002/(sici)1099-1476(199810)21:15<1441::aid-mma3>3.0.co;2-j
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Inverse backscattering problem for Maxwell's equations

Abstract: In this paper we consider the inverse backscattering problem for Maxwell's equations in a non‐magnetic inhomogeneous medium, i.e. the magnetic permeability is a fixed constant. We show that the electric permittivity ε is uniquely determined by the trace of the backscattering kernel S(s, −θ, θ) for all s∈ℝ, θ∈S2 provided that it is a priori close to a constant. © 1998 B. G. Teubner Stuttgart—John Wiley & Sons, Ltd.

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Cited by 9 publications

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“…We think our proof is simpler. Analogous to (b), the articles [SU97], [Wa98], [Wae98], [Wam98], [Wa00], study the inverse backscattering problem but for the acoustic equation, Maxwell's equation or the equations of elasticity and prove injectivity or stability for the problem when the coefficients are close to a constant.…”
Section: The Problems and The Resultsmentioning
confidence: 99%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
“…We think our proof is simpler. Analogous to (b), the articles [SU97], [Wa98], [Wae98], [Wam98], [Wa00], study the inverse backscattering problem but for the acoustic equation, Maxwell's equation or the equations of elasticity and prove injectivity or stability for the problem when the coefficients are close to a constant.…”
Section: The Problems and The Resultsmentioning
confidence: 99%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
“…A classical example of this situation is the backscattering problem. The uniqueness of solution of the inverse problem using the backscattering data can be found in [8], [9], [10], [23], and the recovery of singularities was studied in [24], [31], [22], [26]. In all the papers above, it was assumed that the echo data is available for incident waves coming from all the directions.…”
mentioning
confidence: 99%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.
“…Other references on inverse backscattering for a time-harmonic Schrödinger equation are [10,37,59]. The backscattering problem has also been studied in the framework of acoustic scattering (see [55,61,62]) and Maxwell equations (see [60]). For a concise treatment of classical inverse scattering, we refer to [17].…”
Section: Introductionmentioning
confidence: 99%
Exaggerated anticipatory anxiety is common in social anxiety disorder (SAD). Neuroimaging studies have revealed altered neural activity in response to social stimuli in SAD, but fewer studies have examined neural activity during anticipation of feared social stimuli in SAD. The current study examined the time course and magnitude of activity in threat processing brain regions during speech anticipation in socially anxious individuals and healthy controls (HC). Method Participants (SAD n = 58; HC n = 16) underwent functional magnetic resonance imaging (fMRI) during which they completed a 90s control anticipation task and 90s speech anticipation task.