On a generalization of the Bessel inequality

DOI10.1007/BF01262190zbMath0813.42015OpenAlexW1990231356MaRDI QIDQ1316862

A. S. Krantsberg

Publication date: 12 April 1994

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

Full work available at URL: https://doi.org/10.1007/bf01262190

zbMATH Keywords

Bessel inequalityorthonormal systemsMenshov-Rademacher lemma

Mathematics Subject Classification ID

General harmonic expansions, frames (42C15)

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