On the generalizations of some factors theorems for infinite series and Fourier series
Abstract
Quite recently, Bor [Quaest. Math. 42 (2019) (in press)] has proved a new result on weighted arithmetic mean summability factors of non decreasing sequences and application on Fourier series. In this paper, we extend his result to more general matrix summability method by using an almost increasing sequence and normal matrices in place of a positive non-decreasing sequence and weighted mean matrices, respectively.
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