The phase retrieval problem for solutions of the Helmholtz equation
Langue
en
Article de revue
Ce document a été publié dans
Inverse Problems. 2017p. Article 105007
IOP Publishing
Résumé en anglais
In this paper we consider the phase retrieval problem for Herglotz functions, that is, solutions of the Helmholtz equation ∆u + λ 2 u = 0 on domains Ω ⊂ R d , d ≥ 2. In dimension d = 2, if u, v are two such solutions then ...Lire la suite >
In this paper we consider the phase retrieval problem for Herglotz functions, that is, solutions of the Helmholtz equation ∆u + λ 2 u = 0 on domains Ω ⊂ R d , d ≥ 2. In dimension d = 2, if u, v are two such solutions then |u| = |v| implies that either u = cv or u = c¯ v for some c ∈ C with |c| = 1. In dimension d ≥ 3, the same conclusion holds under some restriction on u and v: either they are real valued or zonal functions or have non vanishing mean.< Réduire
Mots clés en anglais
phase retrieval
Helmholtz equation
Project ANR
Analyse Variationnelle en Tomographies photoacoustique, thermoacoustique et ultrasonore - ANR-12-BS01-0001
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
Initiative d'excellence de l'Université de Bordeaux - ANR-10-IDEX-0003
Origine
Importé de halUnités de recherche