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Degree of approximation of the conjugate of signals (functions) belonging to Lip ( α , r ) -class by ( C , 1 ) ( E , q ) means of conjugate trigonometric Fourier series
In this paper, we determine the degree of approximation of the conjugate of 2π-periodic signals (functions) belonging to ( , )-class by using Cesàro-Euler means of their conjugate trigonometric Fourier series. Our result generalizes the result of Lal and Singh (Tamkang J. Math. 33(3):269-274, 2002). MSC:41A10.