Yu. N. Subbotin, S. A. Telyakovskii, “On the Relative Widths of Ellipsoids in Hilbert Space”, Mat. Zametki, 2012, Volume 91, Issue 3,Pages <nobr>473–476</nobr>

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Mat. Zametki, 2012 Volume 91, Issue 3, Pages 473–476 (Mi mzm9163)

Brief Communications

On the Relative Widths of Ellipsoids in Hilbert Space

Yu. N. Subbotin^a, S. A. Telyakovskii^b

^a Institute of Mathematics and Mechanics, Ural Branch of the Russian Academy of Sciences, Ekaterinburg
^b Steklov Mathematical Institute, Russian Academy of Sciences

Keywords: relative width of a set, Kolmogorov width, separable Hilbert space, centrally symmetric ellipsoid.

Received: 26.05.2011

DOI: 10.4213/mzm9163

English version: Mathematical Notes, 2012, 91:3, 449–452

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