On the order of growth of rectangular partial sums of double orthogonal series
Abstract
We obtain estimates of the order of growth of rectangular partial sums of double orthogonal series and establish their unimprovability on the set of all double orthogonal systems.
English version (Springer): Ukrainian Mathematical Journal 51 (1999), no. 10, pp 1461-1475.
Citation Example: Andrienko V. A. On the order of growth of rectangular partial sums of double orthogonal series // Ukr. Mat. Zh. - 1999. - 51, № 10. - pp. 1299–1310.
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