The ortho-diameters of Nikol’skii and Besov classes in the Lorentz spaces
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Allerton Press, Inc.
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In this paper we estimate the order of approximation of S. M. Nikol’skii and O. V. Besov classes in the norm of the anisotropic Lorentz space. We also obtain bounds for ortho-diameters of these classes.
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Akishev G. A. The ortho-diameters of Nikol’skii and Besov classes in the Lorentz spaces/Akishev G. A.//Russian Mathematics.-2009.-№2(53).- pp 21–29