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@article{BUMI_1961_3_16_4_a1, author = {Varshney, O. P.}, title = {On the matrix summability of the derived {Fourier} series.}, journal = {Bollettino della Unione matematica italiana}, pages = {379--382}, publisher = {mathdoc}, volume = {Ser. 3, 16}, number = {4}, year = {1961}, zbl = {0104.28703}, mrnumber = {147839}, language = {en}, url = {http://geodesic.mathdoc.fr/item/BUMI_1961_3_16_4_a1/} }
Varshney, O. P. On the matrix summability of the derived Fourier series.. Bollettino della Unione matematica italiana, Série 3, Tome 16 (1961) no. 4, pp. 379-382. http://geodesic.mathdoc.fr/item/BUMI_1961_3_16_4_a1/
[1] The Harmon'c summability of the derived Fourier series, «Duke Mathematical Journal», 2 (1958) pp. 125-130. | fulltext mini-dml | MR | Zbl
,[2] Trigonometncal series, Warsaw. 1935
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