Abstract
In this paper we prove necessary and sufficient conditions for the weighted L 1-integrability of functions defined on [0, 1) in terms of Fourier coefficients with respect to a multiplicative system of bounded type. These results are counterparts of trigonometric ones obtained by M. and S. Izumi and M. M. Robertson.
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Original Russian Text © S.S. Volosivets, 2012, published in Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika, 2012, No. 8, pp. 15–26.
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Volosivets, S.S. The Weighted L 1-integrability of functions and the parseval equality with respect to multiplicative systems. Russ Math. 56, 11–21 (2012). https://doi.org/10.3103/S1066369X12080026
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DOI: https://doi.org/10.3103/S1066369X12080026