The approximation of certain classes of differentiable periodic functions of two variables by Fourier sums
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Publication:1845327
DOI10.1007/BF01091942zbMath0285.42002OpenAlexW2329066068MaRDI QIDQ1845327
Publication date: 1974
Published in: Ukrainian Mathematical Journal (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.1007/bf01091942
Trigonometric approximation (42A10) Approximation by polynomials (41A10) Convergence and absolute convergence of Fourier and trigonometric series (42A20) Approximation by arbitrary linear expressions (41A45)
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