scientific article; zbMATH DE number 964891
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Publication:5691132
zbMath0882.41001MaRDI QIDQ5691132
Publication date: 14 January 1997
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Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Introductory exposition (textbooks, tutorial papers, etc.) pertaining to approximations and expansions (41-01) Representation and superposition of functions (26B40)
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