This finite sum involving roots of unity is bounded, but why?
Posted by DashDotDashDot, at math.stackexchange.com,
For $N \in \mathbb{N}$, let $\omega := \exp(\frac{2 \pi}{N} \sqrt{-1} )$. For $k,l \in \{1, \dots, N \}$…
Representations, Wavelets, and Frames
Overview of attention for book
Table of Contents
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Altmetric BadgeBook Overview
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Altmetric BadgeChapter 1 Some Riemann Sums Are Better Than Others
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Altmetric BadgeChapter 2 Gelfand Pairs Associated with Finite Heisenberg Groups
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Altmetric BadgeChapter 3 Groups with Atomic Regular Representation
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Altmetric BadgeChapter 4 Wavelet Transforms and Admissible Group Representations
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Altmetric BadgeChapter 5 The Density Theorem and the Homogeneous Approximation Property for Gabor Frames
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Altmetric BadgeChapter 6 Recent Developments on Dual Wavelet Frames
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Altmetric BadgeChapter 7 Characteristic Wavelet Equations and Generalizations of the Spectral Function
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Altmetric BadgeChapter 8 Baggett’s Problem for Frame Wavelets
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Altmetric BadgeChapter 9 Simple Wavelet Sets for Scalar Dilations in ℝ2
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Altmetric BadgeChapter 10 Interpolation Maps and Congruence Domains for Wavelet Sets
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Altmetric BadgeChapter 11 Orthogonal Exponentials for Bernoulli Iterated Function Systems
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Altmetric BadgeChapter 12 Representations, Wavelets, and Frames
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Altmetric BadgeChapter 13 Sampling and Time-Frequency Localization of Band-Limited and Multiband Signals
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Altmetric BadgeChapter 14 Entropy Encoding in Wavelet Image Compression