scientific article; zbMATH DE number 3549567
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Publication:4123774
zbMath0353.41014MaRDI QIDQ4123774
Publication date: 1976
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Trigonometric approximation (42A10) Best approximation, Chebyshev systems (41A50) Abstract approximation theory (approximation in normed linear spaces and other abstract spaces) (41A65) Positive definite functions in one variable harmonic analysis (42A82)
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