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Order of the orthoprojection widths of the anisotropic Nikol’skii-Besov classes in the anisotropic Lorentz space. (English) Zbl 07238440
Summary: In this paper we estimate the order of the orthoprojection widths of the anisotropic Nikol’skii-Besov classes in the anisotropic Lorentz space.

##### MSC:
 41A46 Approximation by arbitrary nonlinear expressions; widths and entropy 42B35 Function spaces arising in harmonic analysis
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##### References:
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