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Applied and Computational Harmonic Analysis
Article
License: Elsevier Non-Commercial
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Applied and Computational Harmonic Analysis
Article . 2002
License: Elsevier Non-Commercial
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Applied and Computational Harmonic Analysis
Article . 2002 . Peer-reviewed
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zbMATH Open
Article . 2002
Data sources: zbMATH Open
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The Canonical Dual Frame of a Wavelet Frame

The canonical dual frame of a wavelet frame
Authors: Daubechies, Ingrid; Han, Bin;

The Canonical Dual Frame of a Wavelet Frame

Abstract

It is well known that there exist wavelet frames \(\{2^{j/2}\psi(2^jx-k)\}_{j,k\in Z}\) for which the canonical dual frame does not have wavelet structure. In this paper the authors find such a frame with the additional property that other duals, which have the wavelet structure, exist; in fact, infinitely many such duals exist. Similar constructions are possible for wavelet frames \(\{2^{j/2}\psi_l(2^jx-k)\}_{j,k\in Z, l=1,\dots,r}\) generated by \(r\) functions. For such a frame, equivalent conditions for the canonical dual frame to be generated by \(2^Jr\) functions (for some \(J=0,1,2,\dots\)) are given.

Keywords

dual frame, Applied Mathematics, wavelet frame, canonical dual, Nontrigonometric harmonic analysis involving wavelets and other special systems, the canonical dual frame, dual wavelet frame

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
56
Top 10%
Top 10%
Average
hybrid