Zygmund, Antoni The approximation of functions by typical means of their Fourier series. (English) Zbl 0060.18804 Duke Math. J. 12, 695-704 (1945). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 24 Documents Keywords:approximation and series expansion PDFBibTeX XMLCite \textit{A. Zygmund}, Duke Math. J. 12, 695--704 (1945; Zbl 0060.18804) Full Text: DOI