On the relative widths of ellipsoids in Hilbert space

DOI10.1134/S0001434612030170zbMATH Open1283.41028OpenAlexW1968179348MaRDI QIDQ2435964

S. A. Telyakovskiĭ, Yu. N. Subbotin

Publication date: 21 February 2014

Published in: Mathematical Notes (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1134/s0001434612030170

zbMATH Keywords

separable Hilbert spaceKolmogorov widthcentrally symmetric ellipsoidrelative width of a set

Mathematics Subject Classification ID

Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Approximation by arbitrary nonlinear expressions; widths and entropy (41A46)

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