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The exact order of\(\sum\nolimits_{k = 1}^{\text{n}} {|{\text{x - x}}_{\text{k}} } |^8 |{\text{l}}_{\text{k}} ({\text{x)|}}^{\text{t}} \)

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Approximation Theory and its Applications

Abstract

In this paper we give the exact order of\(\sum\nolimits_{k = 1}^{\text{n}} {|{\text{x - x}}_{\text{k}} } |^5 .\) for any fixed nonnegative integers s and t, which is n−s, n−s lnn and n1−t for s≤t−2, s=t−1 and s≥t, respectively.

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References

  1. Vertesi, P., On Sums of Lebesgue Function Type, Acta Math. Acad. Sci. Hungar., 40(1982), 217–227.

    Article  MATH  MathSciNet  Google Scholar 

  2. Shi, Y. G., On Critical Order of Hermite-Fejér Type Interpolation, in “Progress in Approximation Theory” (P. Nevai, and A. Pinkus, eds.), pp. 761–766, Academic Press, New York, 1991.

    Google Scholar 

  3. Erdos, P. and Turan, P., On Interpolation. III, Annals of Math., 41(1940), 510–553.

    Article  MathSciNet  Google Scholar 

  4. Sun, Xiehua, Some Results on Fundamental Polynomials of Lagrange Interpolation, J. Hangzhou Univ., 12(1985), 424–431 (in Chinese).

    MATH  Google Scholar 

  5. Vertesi, P., New Estimation for the Lebesgue Function of Lagrange Interpolation, Acta Math. Acad. Sci. Hungar., 40(1982), 21–27.

    Article  MATH  MathSciNet  Google Scholar 

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Yingguang, S. The exact order of\(\sum\nolimits_{k = 1}^{\text{n}} {|{\text{x - x}}_{\text{k}} } |^8 |{\text{l}}_{\text{k}} ({\text{x)|}}^{\text{t}} \) . Approx. Theory & its Appl. 8, 1–10 (1992). https://doi.org/10.1007/BF02836333

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  • DOI: https://doi.org/10.1007/BF02836333

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