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Volume :8 Issue : 1 1981
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A strengthened form of a theorem of Fejér by means of Fourier-Young coefficients
Auther : RAFAT NAB1 SIDDIQI
Department of Mathematics, University of Kuwait
ABSTRACT
Siddiqi (1977) obtained some results on determination of the jump of a function of Wieners class by considering the Nِrlund method of summability of the sequence {nBn(x)}. He defined Fourier-Young coefficients (Siddiqi 1976). Now we obtain a strengthened form of a classical theorem of Fejér on determination of the jump of a function by means of its Fourier-Young coefficients. We also obtain new results in this connection.