Pointwise approximation of functions by matrix operators of their Fourier series with r- differences of the entries
Abstract
We extend the results of Xh. Z. Krasniqi [Acta Comment. Univ. Tartu. Math. 17 (2013), 89-101] and the authors [Acta Comment. Univ. Tartu. Math. 13 (2009), 11-24]. to the case where in the measures of estimations there are used r-differences of the entries.
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