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Order Estimates of Approximation Characteristics of Functions From the Anisotropic Nikol'skii–Besov Classes


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Abstract

We obtained the exact order estimates of deviations of functions from the anisotropic Nikol’skii–Besov classes \( {B}_{p,\theta}^r\left({\mathrm{\mathbb{R}}}^d\right) \) from their sections of the Fourier integral. The error of the approximation is evaluated in the metric of the Lebesgue space L(ℝd).

About the authors

Sergii Ya. Yanchenko

Institute of Mathematics of the NASU

Author for correspondence.
Email: Yan.Sergiy@gmail.com
Ukraine, Kyiv

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