On the approximation of integrable functions by some special matrix means of Fourier series

Demonstratio Mathematica

Kranz Radosława¹  Rzepka Aleksandra¹ 

[1] University of Zielona Góra, Faculty of Mathematics, Computer Science and Econometrics, 65-516 Zielona Góra, ul. Szafrana 4a, Poland;

关键词: Degree of approximation;    Fourier series;    matrix means;    42A24 42A24;   

DOI  :  10.1515/dema-2017-0034

来源: DOAJ

【 摘 要 】

The results concerninig pointwise approximation and product of summability methods corresponding to the theorems of Xh. Z. Krasniqi [Poincare J. Anal. Appl., 2014, 1, 1-8] and W. Łenski and B. Szal [Math. Slovaca, 2016, 66(6), 1-12] are generalized. Some special cases are also formulated as corollaries.

【 授权许可】

Unknown