Askey, R.; Hirschman, I. I. jun. Mean summability for ultraspherical polynomials. (English) Zbl 0132.29501 Math. Scand. 12, 167-177 (1963). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 25 Documents Keywords:approximation and series expansion PDFBibTeX XMLCite \textit{R. Askey} and \textit{I. I. Hirschman jun.}, Math. Scand. 12, 167--177 (1963; Zbl 0132.29501) Full Text: DOI EuDML