Analogue of the Hardy–Littlewood criterion for Fourier series over Vilenkin system in the case
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 2 (2020), pp. 48-51
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Series with respect to a system of characters of a zero-dimensional compact commutative group are considered. A generalization of analogue of Hardy–Littlewood test and its consequences, which were earlier obtained in the case of bounded sequence $\{p_k\}$ defining the system, are proved.
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