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Convergence of multiple fourier series for functions of bounded variation

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Abstract

For functions of bounded variation in the sense of Hardy, we consider the pointwise convergence of the partial sums of Fourier series over a given sequence of bounded sets in the space of harmonics. We obtain sufficient conditions for convergence; necessary and sufficient conditions are obtained for the case in which these sets are convex with respect to each coordinate direction. The Pringsheim convergence of Fourier series in this problem was established by Hardy.

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Authors and Affiliations

  1. V. A. Steklov Mathematics Institute, Russian Academy of Sciences, USSR

    S. A. Telyakovskii

  2. University of South Carolina, South Carolina, USA

    V. N. Temlyakov

Authors
  1. S. A. Telyakovskii
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  2. V. N. Temlyakov
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Translated fromMatematicheskie Zametki, Vol. 61, No. 4, pp. 583–595, April, 1997.

Translated by S. A. Telyakovskii and V. N. Temlyakov

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Telyakovskii, S.A., Temlyakov, V.N. Convergence of multiple fourier series for functions of bounded variation. Math Notes 61, 484–494 (1997). https://doi.org/10.1007/BF02354993

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  • DOI: https://doi.org/10.1007/BF02354993

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