Approximation by Riesz Means of Hexagonal Fourier Series
Ali Guven
Balikesir University, Turkey
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Abstract
Let be an -periodic (periodic with respect to the hexagon lattice) Hölder continuous function of two real variables. The error is estimated in the uniform norm and in the Hölder norm, where is a sequence of numbers such that and is the th Riesz mean of hexagonal Fourier series of with respect to .
Cite this article
Ali Guven, Approximation by Riesz Means of Hexagonal Fourier Series. Z. Anal. Anwend. 36 (2017), no. 1, pp. 1–16
DOI 10.4171/ZAA/1576