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math.CA2025
Sign retrieval in spaces of variable bandwidth
Philippe Jaming, Rolando Perez
The aim of this paper is to get a deeper understanding of the spaces of variable bandwidth introduced by Gr{ö}chenig and Klotz (What is variable bandwidth? Comm. Pure Appl. Math.,…
math.CA2021
On the effect of zero-flipping on the stability of the phase retrieval problem in the Paley-Wiener class
Philippe Jaming, Karim Kellay, Rolando Perez
In the classical phase retrieval problem in the Paley-Wiener class for , i.e. to recover from , Akutowicz, Walther, and Hofstetter independently showed…
math.CA2019
Phase retrieval for wide-band signals
Philippe Jaming, Karim Kellay, Rolando Perez
This study investigates the phase retrieval problem for wide-band signals. We solve the following problem: given f L 2 (R) with Fourier transform in L 2 (R, e^{2c|x|} dx), we…