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Publication:3036030

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zbMATH Open0523.42002MaRDI QIDQ3036030

Tingfan Xie

Publication date: 1983

Title of this publication is not available (Why is that?)

zbMATH Keywords

Fourier sum Fejer sum quasi-monotone Fourier coefficients

Mathematics Subject Classification ID

Trigonometric approximation (42A10) Fourier coefficients, Fourier series of functions with special properties, special Fourier series (42A16) Trigonometric series of special types (positive coefficients, monotonic coefficients, etc.) (42A32)

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