Approximation of Lipschitz Class by Deferred-Generalized Nӧrlund \((D_\gamma\beta.N_{pq})\) Product Summability Means

In this paper, we have determined the degree of approximation of function belonging of Lipschitz class by using Deferred-Generalized Nӧrlund \((D_\gamma\beta.N_{pq})\) means of Fourier series and conjugate series of Fourier series, where {pn} and {qn} is a non-increasing sequence. So that results of DEGER and BAYINDIR become special cases of our results.