Weak Chebyshev subspaces and alternation
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Publication:1149598
DOI10.2140/pjm.1980.89.9zbMath0454.41030OpenAlexW2041062589MaRDI QIDQ1149598
Ivan Singer, Frank Deutsch, Günther Nürnberger
Publication date: 1980
Published in: Pacific Journal of Mathematics (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.2140/pjm.1980.89.9
Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Uniqueness of best approximation (41A52)
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