Geodesic
On Exponential Summability of Rectangular Partial Sums of Double Trigonometric Fourier Series
Matematičeskie zametki, Tome 104 (2018) no. 5, pp. 667-679.

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In this paper, we study the a.e. exponential strong summability problem for the rectangular partial sums of double trigonometric Fourier series of functions in $L\log L$.
Keywords: double Fourier series, strong summability, exponential means. 
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U. Goginava; G. Karagulian. On Exponential Summability of Rectangular Partial Sums of Double Trigonometric Fourier Series. Matematičeskie zametki, Tome 104 (2018) no. 5, pp. 667-679. http://geodesic.mathdoc.fr/item/MZM_2018_104_5_a3/

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