An extension theorem on degree of approximation of fourier series by (E, q)B−mean

Abstract

Now-a-days, approximation of functions have great importance in the field of science and engineering because of its wider applicability. It is observed that the determination of trigonometric approximation of functions in various function spaces using summability techniques of Fourier series and conjugate Fourier series received a growing interest among the researchers and scientists. In the present article, we have established a new result on the degree of approximation of a Fourier series of weighted Lipchitz class W(Lᴾ, ξ(u)) by using the product mean (E, q)B.