Abstract
An optimal choice of free parameters in explicit Runge-Kutta schemes up to the sixth order is discussed. A sixth-order seven-stage scheme that is immediately ahead of Butcher’s second barrier is constructed. The study is performed in the most general form, and its results are applicable to both autonomous and nonautonomous problems.
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Original Russian Text © E.A. Alshina, E.M. Zaks, N.N. Kalitkin, 2008, published in Zhurnal Vychislitel’noi Matematiki i Matematicheskoi Fiziki, 2008, Vol. 48, No. 3, pp. 418–429.
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Alshina, E.A., Zaks, E.M. & Kalitkin, N.N. Optimal first- to sixth-order accurate Runge-Kutta schemes. Comput. Math. and Math. Phys. 48, 395–405 (2008). https://doi.org/10.1134/S0965542508030068
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DOI: https://doi.org/10.1134/S0965542508030068