Embedding relations connected with strong approximation of Fourier series |
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Authors: | Bogdan Szal |
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Institution: | 1.Faculty of Mathematics, Computer Science and Econometrics,University of Zielona Góra,Zielona Góra,Poland |
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Abstract: | We consider the embedding relation between the class W
q
H
β
ω
, including only odd functions and a set of functions defined via the strong means of Fourier series of odd continuous functions.
We establish an improvement of a recent theorem of Le and Zhou Math. Inequal. Appl.
11(4) (2008) 749–756] which is a generalization of Tikhonov’s results Anal. Math.
31 (2005) 183–194]. We also extend the Leindler theorem Anal. Math.
31 (2005) 175–182] concerning sequences of Fourier coefficients. |
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Keywords: | |
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