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scientific article; zbMATH DE number 1259483 - MaRDI portal

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zbMath0919.42003MaRDI QIDQ4231093

N. A. Il'yasov

Publication date: 16 March 1999

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

upper estimate modulus of smoothness best approximation

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Best approximation, Chebyshev systems (41A50)

Related Items (2)

The direct theorem of the theory of approximation of periodic functions with monotone Fourier coefficients in different metrics ⋮ ORDER EQUALITIES IN DIFFERENT METRICS FOR MODULI OF SMOOTHNESS OF VARIOUS ORDERS

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