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An analog of the rolle theorem for differential operators andL-spline interpolation

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Abstract

An analog of the Rolle theorem is established for linear differential operators with continuous periodic coefficients. By using this result, exact values of the deviations of interpolationalL-splines are obtained on certain classes of functions given by a linear differential operator.

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References

  1. A. Zettl, “General theory of the factorization of ordinary linear differential operators,”Trans. Amer. Math. Soc.,197, 345–353 (1974).

    Google Scholar 

  2. W. Coppel, “Disconjugacy,”Springer Led. Notes Math.,220, 1–147 (1971).

    Google Scholar 

  3. A. Yu. Levin, “Nonoscillation of solutions of the equation ϰn1(t)ϰn−1+h.+ρn(t)ϰ=0”Uspekhi Mat. Nauk,24, No.2 (146), 43–96 (1969).

    Google Scholar 

  4. I. Troch, “On the interval of disconjugacy of linear autonomous differential equations,”SIAM J. Math. Anal.,12, No.l, 78–89 (1981).

    Google Scholar 

  5. G. N. Mil'shtein, “A boundary-value problem for a system of two differential equations,”Differents. Uravn.,1, No. 12, 1628–1639 (1965).

    Google Scholar 

  6. Yu. A. Melentsova and G. N. Mil'shtein, “An optimal estimate of the interval of nonoscillation for linear differential equations with bounded coefficients,”Differents. Uravn.,17, No. 12, 2160–2175 (1981).

    Google Scholar 

  7. A. Zettl, “An algorithm for the construction of all disconjugate operators,”Proc. Roy, Soc. Edinburgh., Ser. A,76, No. 4, 33–40 (1976).

    Google Scholar 

  8. F. J. Tricomi,Equazioni Differenziali, Einaudi, Torino (1953).

    Google Scholar 

  9. M. G. Krein, “A new property of the Sturm-Liouville operator,”Trudy Odesskogo Univ.,3, 15–22 (1941).

    Google Scholar 

  10. Nguyen Thi Thieu Hoa,The Best Quadrature Formulas and the Renewal Methods on Function Classes Given by Convolutions That Do Not Increase the Oscillation [in Russian], Candidate of Sci. Thesis (Physics and Mathematics), Moscow (1985).

  11. Nguyen Thi Thieu Hoa, “Some extremal problems on function classes defined by linear differential operators,”Mat. Sb.,180, No. 10, 1355–1395 (1989).

    Google Scholar 

  12. S. Karlin,Total Positivity, Vol. 1, Stanford Univ. Press, Stanford (1968).

    Google Scholar 

  13. J. Mairhuber, I. Schoenberg, and R. Williamson, “On variation diminishing transformations on the circle,”Rend. Circ. Mat. Palermo,8, 241–270 (1959).

    Google Scholar 

  14. V. F. Babenko,Extremal Problems in the Theory of Approximations and Asymmetric Norms [in Russian], Doctor of Sci. Thesis (Physics and Mathematics), Kiev (1989).

  15. N. P. Korneichuk,Exact Constants in the Theory of Approximations [in Russian], Nauka, Moscow (1987).

    Google Scholar 

  16. V. M. Tikhomirov, “The best approximation and interpolation methods for differentiable functions inC [−1,1]Mat. Sb., No. 2 (10), 290–304 (1969).

    Google Scholar 

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Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 45, No. 8, pp. 1122–1128, August, 1993.

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Novikov, S.I. An analog of the rolle theorem for differential operators andL-spline interpolation. Ukr Math J 45, 1252–1259 (1993). https://doi.org/10.1007/BF01070973

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  • DOI: https://doi.org/10.1007/BF01070973

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