Approximation by Nörlund means of double Fourier series for Lipschitz functions
نویسندگان
چکیده
منابع مشابه
Approximation by Nörlund Means of Double Walsh–fourier Series for Lipschitz Functions
For double trigonometric Fourier series, Móricz and Rhoades studied the rate of uniform approximation by Nörlund means of the rectangular partial sums of double Fourier series of a function belonging to the class Lipα (0 < α 1) [12] and the class of continuous functions [13], on the two-dimensional torus. As a special case, they obtained the rate of uniform approximation by double Cesàro means....
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Approximation theory is a very important field which has various applications in pure and applied mathematics. The present study deals with a new theorem on the approximation of functions of Lipschitz class by using Euler's mean of conjugate series of Fourier series. In this paper, the degree of approximation by using Euler's means of conjugate of functions belonging to Lip (ξ(t), p) class has ...
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ژورنال
عنوان ژورنال: Journal of Approximation Theory
سال: 1987
ISSN: 0021-9045
DOI: 10.1016/0021-9045(87)90012-8