We consider a generalization, under weaker conditions, of the main theorem on quasi-σ-power increasing sequences applied to |A, θn|k summability factors of infinite series and Fourier series. We obtain some new and known results related to the basic summability methods.
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Published in Ukrains’kyi Matematychnyi Zhurnal, Vol. 72, No. 5, pp. 635–643, May, 2020.
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Yıldız, Ş. Matrix Application of Power Increasing Sequences to Infinite Series and Fourier Series. Ukr Math J 72, 730–740 (2020). https://doi.org/10.1007/s11253-020-01813-x
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DOI: https://doi.org/10.1007/s11253-020-01813-x