Approximation of Fourier sums on classes of periodic functions that are defined by polyharmonic operators

DOI10.1007/BF01140529zbMath0508.42007OpenAlexW1976214198MaRDI QIDQ1837868

N. N. Zaderej, A. I. Stepanets

Publication date: 1980

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

Full work available at URL: https://doi.org/10.1007/bf01140529

zbMATH Keywords

modulus of continuityDirichlet kernelHölder classespolyharmonic operatorsapproximation by Fourier sumsVallee Poussin sums

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Continuity and related questions (modulus of continuity, semicontinuity, discontinuities, etc.) for real functions in one variable (26A15) Inequalities in approximation (Bernstein, Jackson, Nikol'ski?-type inequalities) (41A17)

Cites Work

• Zur Grössenordnung des Restgliedes Fourierscher Reihen differenzierbarer Funktionen
• Unnamed Item
• Unnamed Item

This page was built for publication: Approximation of Fourier sums on classes of periodic functions that are defined by polyharmonic operators