ON METHODS OF INVESTIGATING EXTREMAL PROBLEMS IN THE THEORY OF BEST APPROXIMATION

DOI10.1070/RM1974v029n03ABEH001284zbMath0373.41026OpenAlexW2045302147MaRDI QIDQ4150646

N. P. Kornejchuk

Publication date: 1974

Published in: Russian Mathematical Surveys (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1070/rm1974v029n03abeh001284

Mathematics Subject Classification ID

Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65)

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