Overcompleteness of coherent frames for unimodular amenable groups

Journal Article (2023)
Author(s)

Martijn Caspers (TU Delft - Analysis)

Jordy Timo Van Velthoven (TU Delft - Analysis, University of Vienna)

Research Group
Analysis
DOI related publication
https://doi.org/10.4310/ARKIV.2023.v61.n2.a2
More Info
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Publication Year
2023
Language
English
Research Group
Analysis
Issue number
2
Volume number
61
Pages (from-to)
277-299
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Abstract

This paper concerns the overcompleteness of coherent frames for unimodular amenable groups. It is shown that for coherent frames associated with a localized vector a set of positive Beurling density can be removed yet still leave a frame. The obtained results extend various theorems of [J. Fourier Anal. Appl., 12(3):307-344, 2006] to frames with non-Abelian index sets.