Geodesic
On some analytic method for approximate solution of systems of second order ordinary differential equations
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 3 (2019), pp. 65-69 
O. B. Arushanyan; S. F. Zaletkin. On some analytic method for approximate solution of systems of second order ordinary differential equations. Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 3 (2019), pp. 65-69. http://geodesic.mathdoc.fr/item/VMUMM_2019_3_a9/
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     author = {O. B. Arushanyan and S. F. Zaletkin},
     title = {On some analytic method for approximate solution of systems of second order ordinary differential equations},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {65--69},
     year = {2019},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2019_3_a9/}
}
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Voir la notice de l'article provenant de la source Math-Net.Ru

An approach to using Chebyshev series to solve canonical second-order ordinary differential equations is described. This approach is based on the approximation of the solution to the Cauchy problem and its first and second derivatives by partial sums of shifted Chebyshev series. The coefficients of the series are determined by an iterative process using the Markov quadrature formula. It is shown that the described approach allows one to propose an approximate analytical method of solving the Cauchy problem. A number of canonical second-order ordinary differential equations are considered to represent their approximate analytical solutions in the form of partial sums of shifted Chebyshev series.

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