# Approximation of functions of class $Lip(\alpha,r), (r\geq1)$ by $(N,p_n)(E,1)$ summability means of Fourier series

## DOI:

https://doi.org/10.5556/j.tkjm.45.2014.876## Keywords:

Trigonometric approximation, Fourier series, regular (N, p_n)means, (E, 1) means and (N, p_n)(E, 1) summability means and generalized Minkowski inequality## Abstract

In this paper, two new theorems on degree of approximation of a function $f\in Lip(\alpha,r), \ \ (r \geq 1)$, have been established. A new technique is applied to find the estimate.## References

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*Tamkang Journal of Mathematics*,

*45*(3), 243-250. https://doi.org/10.5556/j.tkjm.45.2014.876