On sine and cosine series with multiply monotone coefficients

zbMath0728.42005MaRDI QIDQ804872

T. M. Vukolova

Publication date: 1990

Published in: Moscow University Mathematics Bulletin (Search for Journal in Brave)

zbMATH Keywords

moduli of smoothnesstrigonometric seriesbest approximationscosinescoefficients of different degrees of monotonicitysines

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Trigonometric series of special types (positive coefficients, monotonic coefficients, etc.) (42A32)

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