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Exact order of the lebesgue constants of hyperbolic partial sums of multiple fourier series

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Translated from Matematicheskie Zametki, Vol. 39, No. 5, pp. 674–683, May, 1986.

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Liflyand, I.R. Exact order of the lebesgue constants of hyperbolic partial sums of multiple fourier series. Mathematical Notes of the Academy of Sciences of the USSR 39, 369–374 (1986). https://doi.org/10.1007/BF01156675

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