Conditioning of Partial Nonuniform Fourier Matrices with Clustered Nodes

Conditioning of Partial Nonuniform Fourier Matrices with Clustered Nodes

© 2020 Society for Industrial and Applied Mathematics We prove sharp lower bounds for the smallest singular value of a partial Fourier matrix with arbitrary "off the grid" nodes (equivalently, a rectangular Vandermonde matrix with the nodes on the unit circle) in the case when some of the...

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Bibliografiska uppgifter
Huvudupphovsmän:	Batenkov, Dmitry, Demanet, Laurent, Goldman, Gil, Yomdin, Yosef
Övriga upphovsmän:	Massachusetts Institute of Technology. Department of Mathematics
Materialtyp:	Artikel
Språk:	English
Publicerad:	Society for Industrial & Applied Mathematics (SIAM) 2021
Länkar:	https://hdl.handle.net/1721.1/136016

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