Approximation characteristics of the Nikol'skii-Besov-type classes of periodic functions of several variables in the space $B_{q , 1}$

Best approximation, Chebyshev systems (41A50) Approximation by polynomials (41A10) Approximation by arbitrary nonlinear expressions; widths and entropy (41A46)

Cites Work

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Approximation characteristics of the Nikol'skii-Besov-type classes of periodic functions of several variables in the space \(B_{q , 1}\)