Abstract
We establish some statements regarding series with respect to a Schauder system. In particular, we prove a representation theorem and we investigate the behavior of the Fourier coefficients of some classes of functions.
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Translated from Matematicheskie Zametki, Vol. 7, No. 4, pp. 431–442, April, 1970.
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Ul'yanov, P.L. On series with respect to a Schauder system. Mathematical Notes of the Academy of Sciences of the USSR 7, 261–268 (1970). https://doi.org/10.1007/BF01151699
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DOI: https://doi.org/10.1007/BF01151699