On estimates of approximation numbers and best bilinear approximation
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Publication:1187187
DOI10.1007/BF01208903zbMath0754.41014MaRDI QIDQ1187187
Publication date: 28 June 1992
Published in: Constructive Approximation (Search for Journal in Brave)
Best approximation, Chebyshev systems (41A50) Multidimensional problems (41A63) Approximation by operators (in particular, by integral operators) (41A35)
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