西南石油大学学报(自然科学版) ›› 2000, Vol. 22 ›› Issue (1): 87-89.DOI: 10.3863/j.issn.1000-2634.2000.01.024
• 基础理论 • Previous Articles Next Articles
XIAO Wei
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Abstract: This paper investigated the best approximation for odd function f(x)∈C2πby trigonometrical series, the conclusion was drawn: if Fourier Coefficients on f(x) is O regularly varying quasimonotone , then.
Key words: best approximation, Fourier coefficient, O-regularly varying quasimonotone
CLC Number:
O174.41
XIAO Wei. ON THE BEST APPROXIMATION BY SPECIAL TRIGONOMETRICAL SERIES[J]. 西南石油大学学报(自然科学版), 2000, 22(1): 87-89.
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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.3863/j.issn.1000-2634.2000.01.024
http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y2000/V22/I1/87
