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Counting function estimates for coherent frames and Riesz sequences

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arxiv 2407.13540 v2 pith:HJHI3TZN submitted 2024-07-18 math.FA math.CA

Effie Papageorgiou , Jordy Timo van Velthoven This is my paper · ORCID
classification math.FAmath.CA
keywords coherentestimatesframesrieszsequencesconditionscountinggroups
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We prove various estimates for the asymptotics of counting functions associated to point sets of coherent frames and Riesz sequences. The obtained results recover the necessary density conditions for coherent frames and Riesz sequences for general unimodular amenable groups, while providing more precise estimates under additional localization conditions on the coherent system for groups of polynomial growth.

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