On the linear independence of spikes and sines
Functional Analysis
2014-04-29 v2 Metric Geometry
Abstract
The purpose of this work is to survey what is known about the linear independence of spikes and sines. The paper provides new results for the case where the locations of the spikes and the frequencies of the sines are chosen at random. This problem is equivalent to studying the spectral norm of a random submatrix drawn from the discrete Fourier transform matrix. The proof involves depends on an extrapolation argument of Bourgain and Tzafriri.
Keywords
Cite
@article{arxiv.0709.0517,
title = {On the linear independence of spikes and sines},
author = {Joel A. Tropp},
journal= {arXiv preprint arXiv:0709.0517},
year = {2014}
}
Comments
16 pages, 4 figures. Revision with new proof of major theorems