Wafi, A.; Khatoon, N. On the approximation of function by Borel matrix. (English) Zbl 0521.42002 Mat. Vesn. 6(19)(34), 195-199 (1982). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 42A10 Trigonometric approximation 42A24 Summability and absolute summability of Fourier and trigonometric series 40G10 Abel, Borel and power series methods Keywords:Borel exponential mean; Lipschitz class; Hardy-Littlewood class; degree of approximation; Lip K(t) PDFBibTeX XMLCite \textit{A. Wafi} and \textit{N. Khatoon}, Mat. Vesn. 6(19)(34), 195--199 (1982; Zbl 0521.42002)