Estimate for the Best Approximation of Summable Functions of Two Variables in Terms of Fourier Coefficients

DOI10.1023/B:UKMA.0000031703.58056.76zbMath1101.42304OpenAlexW2049044371MaRDI QIDQ3413448

T. O. Kononovich

Publication date: 7 December 2006

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

Full work available at URL: https://doi.org/10.1023/b:ukma.0000031703.58056.76

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Fourier series and coefficients in several variables (42B05)

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