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
Vertesi, P., On Sums of Lebesgue Function Type, Acta Math. Acad. Sci. Hungar., 40(1982), 217–227.
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.
Erdos, P. and Turan, P., On Interpolation. III, Annals of Math., 41(1940), 510–553.
Sun, Xiehua, Some Results on Fundamental Polynomials of Lagrange Interpolation, J. Hangzhou Univ., 12(1985), 424–431 (in Chinese).
Vertesi, P., New Estimation for the Lebesgue Function of Lagrange Interpolation, Acta Math. Acad. Sci. Hungar., 40(1982), 21–27.
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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