Geodesic
On the absolute negative summability of double Fourier series.
Bollettino della Unione matematica italiana, Série 3, Tome 16 (1961) no. 4, pp. 408-411.

Voir la notice de l'article provenant de la source Biblioteca Digitale Italiana di Matematica

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Sharma, P. L. On the absolute negative summability of double Fourier series.. Bollettino della Unione matematica italiana, Série 3, Tome 16 (1961) no. 4, pp. 408-411. http://geodesic.mathdoc.fr/item/BUMI_1961_3_16_4_a6/

[1] Caratheodory, C. Vorlesungen Über Reeile Funktionen. Leipzig and Berlin, 1927. | Jbk 53.0225.16 | MR

[2] Timan, M. F. On absolute summability of Fourier-series in two variables, «Soobse Akad Nauk Gruzin S.S.R.», 17 (1956), 481-488 (Russian). | MR | Zbl

[3] Zãk, I. E. On absolute convergence of double Fourier series, «Soobsceniya Akad. Nauk, Gruzin, S.S.S.R.» 12 (1951). 129-133 (Russian). | MR