Volume 8 | Number 2 | Year 2014 | Article Id. IJMTT-V8P518 | DOI : https://doi.org/10.14445/22315373/IJMTT-V8P518

The field of approximation theory is so vast that it plays an increasingly important role in applications in pure and applied mathematics. The present study deals with a theorem concerning the degree of approximation of a function f belonging to W (Lr, ξ (t)) (r > 1)-class by using (E, 1) (C, 2) of its Fourier series.

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Kusum Sharma, S. S. Malik, "Degree of Approximation of a Function Belongingto W (Lr, ξ (t)) (r > 1)-Class by (E, 1)(C, 2) Product Summabilty Transform," *International Journal of Mathematics Trends and Technology (IJMTT)*, vol. 8, no. 2, pp. 136-146, 2014. *Crossref*, https://doi.org/10.14445/22315373/IJMTT-V8P518