On the absolute negative summability of double Fourier series.
Bollettino della Unione matematica italiana, Série 3, Tome 16 (1961) no. 4, pp. 408-411
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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/
@article{BUMI_1961_3_16_4_a6,
author = {Sharma, P. L.},
title = {On the absolute negative summability of double {Fourier} series.},
journal = {Bollettino della Unione matematica italiana},
pages = {408--411},
year = {1961},
volume = {Ser. 3, 16},
number = {4},
zbl = {0104.28903},
mrnumber = {141946},
language = {en},
url = {http://geodesic.mathdoc.fr/item/BUMI_1961_3_16_4_a6/}
}