Approximation of a Function in Hölder Class Using Double Karamata (Kλ,μ) Method

H. K. Nigam, Md. Hadish

Abstract

In this paper, we establish a new theorem on the best approximation of a function of two variables belonging to H ̈older class by double Karamata (Kλ,μ) means of its double Fourier series.

Keywords

Hölder class, double Karamata (Kλ,µ), double Fourier series, stirling numbers, error approximation

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