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Łenski, Włodzimierz ; Topolewska, Maria
On the rate of strong summability of double Fourier series. (English). Mathematica Bohemica, vol. 123 (1998), issue 4, pp. 337-363
MSC: 40F05, 40G05, 41A17, 42A10, 42B08 | MR 1667108 | Zbl 0936.42007 | DOI: 10.21136/MB.1998.125967
Keywords:
double Fourier series; strong approximation; strong means of Marcinkiewicz type; Cesàro means
Summary:
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.
References:
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