Best m-term trigonometric approximation for periodic functions with low mixed smoothness from the Nikol'skii – Besov-type classes von S. A. Stasiuk

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Approximation by step-hyperbolic Fourier sums of classes MBщ(1,и)(ד) von S. A. Stasiuk

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Approximative characteristics of functions from the classes SЩp,иB(Rd) with a given majorant of mixed moduli of continuity von Ya. Yanchenko, S. A. Stasiuk

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On optimization of numerical differentiation methods for bivariate functions von S. H. Solodkyy̆, S. A. Stasiuk

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