Geodesic
On the rate of strong summability of double Fourier series
Mathematica Bohemica, Tome 123 (1998) no. 4, pp. 337-363.

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Estimates of the strong means of Marcinkiewicz type with the Cesaro means of negative order in one of the variables instead of square partial sums are obtained by characteristics constructed on the basis of moduli of continuity.
DOI : 10.21136/MB.1998.125967
Classification : 40F05, 40G05, 41A17, 42A10, 42B08
Keywords: double Fourier series; strong approximation; strong means of Marcinkiewicz type; Cesàro means 
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Łenski, Włodzimierz; Topolewska, Maria. On the rate of strong summability of double Fourier series. Mathematica Bohemica, Tome 123 (1998) no. 4, pp. 337-363. doi : 10.21136/MB.1998.125967. http://geodesic.mathdoc.fr/articles/10.21136/MB.1998.125967/

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