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  • 1 Department of Numerical Analysis, Eötvös Loránd University Pázmány Péter sétány 1/C, 1117 Budapest, Hungary
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Summary The inequality (n=2Σnp-2^f(n) │p)≤Cp││f││(0<p≤2) is proved for the one- and two-dimensional Ciesielski-Fourier coefficients of functions in Hardy spaces.