On summation processes of Fourier expansions in Banach spaces. I: Comparison theorems

DOI10.2748/tmj/1178241525zbMath0242.42016OpenAlexW3089172812MaRDI QIDQ2554133

R. J. Nessel, Walter Trebels, Paul L. Butzer

Publication date: 1972

Published in: Tôhoku Mathematical Journal. Second Series (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.2748/tmj/1178241525

Mathematics Subject Classification ID

Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) General harmonic expansions, frames (42C15) Rate of convergence, degree of approximation (41A25) Multipliers in one variable harmonic analysis (42A45) Convergence factors and summability factors (40D15) Completeness of sets of functions in one variable harmonic analysis (42A65)

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