2009
DOI: 10.1016/j.laa.2008.08.001
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Singular value estimates of oblique projections

Abstract: Let if'~ and. // be two finite dimensional subspaces of a Hilbert space zZ such that = // '® and let Pit. y zzi denote the oblique projection with range // ' and nullspace .//A In this article we get the following formula for the singular values of P/z || zz±: //J-)-U = min s/fiF-Hr.

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Cited by 3 publications
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“…The theory of oblique duality has been both developed and extended in several ways (see [1,2,13,9,15]). On the other hand, it has been successfully applied to study duality for finitely generated shift invariant systems on L 2 (R d ) (see [8,19,20]).…”
Section: Introductionmentioning
confidence: 99%
“…The theory of oblique duality has been both developed and extended in several ways (see [1,2,13,9,15]). On the other hand, it has been successfully applied to study duality for finitely generated shift invariant systems on L 2 (R d ) (see [8,19,20]).…”
Section: Introductionmentioning
confidence: 99%
“…Como ya hemos mencionado, la teoría de dualidad oblicua para marcos finitos es un escenario amplio para el esquema de codificación-decodificación lineal en un espacio de Hilbert W, basado en la noción de muestreo consistente. La teoría de dualidad oblicua ha sido desarrollada y extendida en varias formas (ver [3,5,28,24,30]). De hecho, se ha aplicado exitosamente al estudio de dualidad para sistemas invariantes por traslaciones finitamente generados en L 2 (R d ) (ver [23,35,36]).…”
Section: Introductionunclassified