Sign retrieval in spaces of variable bandwidth
Résumé
The aim of this paper is to get a deeper understanding of the spaces of variable bandwidth introduced by Gröchenig and Klotz (What is variable bandwidth? Comm. Pure Appl. Math., 70 (2017), 2039-2083). In particular, we show that when the variation of the bandwidth is modeled by a step function with a finite number of jumps, then, the sign retrieval principle applies.
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