scientific article; zbMATH DE number 3524146
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Publication:4102268
zbMath0335.42001MaRDI QIDQ4102268
V. G. Ponomarenko, M. F. Timan
Publication date: 1975
Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Trigonometric approximation (42A10) Multidimensional problems (41A63) Approximation by other special function classes (41A30) Approximation by arbitrary linear expressions (41A45)
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