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Approximate Integration of Canonical Second-Order Ordinary Differential Equations by the Chebyshev Series Method with an Error Estimation of the Solution and Its Derivative

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Abstract

An approximate method of solving the Cauchy problem for canonical second-order ordinary differential equations is considered. This method is based on using the shifted Chebyshev series and a Markov quadrature formula. A number of procedures are discussed to estimate the error of the approximate solution and its derivative expressed by partial sums of shifted Chebyshev series of a certain order. The error is estimated using the second approximate solution obtained by a special way and represented by a partial sum of higher order. The proposed procedures are used to develop an algorithm to partition the integration interval into elementary subintervals, which allows computing an approximate solution and its derivative with a prescribed accuracy.

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Authors and Affiliations

  1. Research Computing Center, Lomonosov Moscow State University, Moscow, Russia

    O. B. Arushanyan & S. F. Zaletkin

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  1. O. B. Arushanyan
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  2. S. F. Zaletkin
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Correspondence to O. B. Arushanyan or S. F. Zaletkin.

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The authors declare that they have no conflicts of interest.

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Translated by E. Oborin

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Arushanyan, O.B., Zaletkin, S.F. Approximate Integration of Canonical Second-Order Ordinary Differential Equations by the Chebyshev Series Method with an Error Estimation of the Solution and Its Derivative. Moscow Univ. Math. Bull. 77, 191–198 (2022). https://doi.org/10.3103/S0027132222040027

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