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Estimates of the widths of classes of analytic functions

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Literature cited

  1. A. N. Kolmogorov, “über die besste AnnÄherung von Funktionen einer gegeben FunktioClasses,” Ann. Math.,37, 107–110 (1936).

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  2. V. M. Tikhomirov, Certain Questions of Approximation Theory [in Russian], Moscow State Univ. (1976).

  3. A. K. Kushpel', Widths of Classes of Smooth Functions in the Space Lq [in Russian], Preprint, Inst. Mat., Akad. Nauk Ukr. SSR, No. 87. 44, Kiev (1987).

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  4. A. K. Kushpel', sk-Splines and Sharp Estimates of Widths of Functional Classes in the Space C2π [in Russian], Preprint, Inst. Mat., Akad. Nauk Ukr.SSR, No. 85.51, Kiev (1984).

  5. A. K. Kushpel', “Sharp estimates of widths of convolution classes in the space C2π,”Tr. Mat. Inst. Akad. Nauk SSSR,180, 148–149 (1987).

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  6. A. K. Kushpel', “Sharp estimates of widths of convolution classes,” Izv. Akad. Nauk SSSR, Ser. Mat.,52, No. 6, 1315–1332 (1988).

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Authors and Affiliations

  1. Mathematics Institute, Academy of Sciences of the Ukrainian SSR, Kiev

    A. K. Kushpel

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  1. A. K. Kushpel
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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 41, No. 4, pp. 567–570, April, 1989.

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Kushpel, A.K. Estimates of the widths of classes of analytic functions. Ukr Math J 41, 493–496 (1989). https://doi.org/10.1007/BF01060633

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  • DOI: https://doi.org/10.1007/BF01060633

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