On the orthomassivity of the set of characteristic functions of convex sets

DOI10.1023/B:MATN.0000015029.48529.2EzbMath1120.41024OpenAlexW1975903821MaRDI QIDQ869788

P. G. Grigor'ev

Publication date: 9 March 2007

Published in: Mathematical Notes (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1023/b:matn.0000015029.48529.2e

zbMATH Keywords

Hilbert spaceorthonormal systemtight framebest \(n\)-term approximationcharacteristic function of convex subsetsorthomassivity of a set

Mathematics Subject Classification ID

Geometry and structure of normed linear spaces (46B20) Approximation with constraints (41A29)

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