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Found 52 Documents (Results 1–52)

Estimates for the Kolmogorov widths of the Nikol’skii-Besov-Amanov classes in the Lorentz space. (English. Russian original) Zbl 1370.41049

Proc. Steklov Inst. Math. 296, Suppl. 1, S1-S12 (2017); translation from Tr. Inst. Mat. Mekh. (Ekaterinburg) 21, No. 4 (2015).
MSC:  41A46 42B35
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The ortho-diameters of Nikol’skii and Besov classes in the Lorentz spaces. (English. Russian original) Zbl 1189.46019

Russ. Math. 53, No. 2, 21-29 (2009); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2009, No. 2, 25-33 (2009).
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On orders of approximation of function classes by polynomials in the generalized Haar system. (Russian) Zbl 1060.41004

Aksent’ev, L. A. (ed.) et al., Geometric theory of functions, boundary value problems and their applications. Proceedings of the international scientific conference, Kazan’, Russia, March 18–24, 2002. Kazan’: Kazanskoe Matematicheskoe Obshchestvo (ISBN 5-900975-33-5). Tr. Mat. Tsentra im. N. I. Lobachevskogo 14, 50-61 (2002).
Reviewer: Yuly Makovoz
MSC:  41A10
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