Abstract
Richardson extrapolation is a sequence acceleration method, which has long been used to enhance the accuracy of time integration methods for solving differential equations. Its classical version is based on a suitable linear combination of numerical solutions obtained by the same numerical method with two different discretization parameters. We present the principle of Richardson extrapolation, and introduce a possible generalization of this method called repeated Richardson extrapolation (RRE). The consistency and convergence of the new method obtained by combining certain Runge-Kutta methods with RRE are analysed and illustrated with numerical experiments.
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Acknowledgements
We appreciate Zahari Zlatev’s useful advice during our investigation of the RRE method. The project has been supported by the Hungarian Scientific Research Fund OTKA SNN125119 and also OTKA K137699.
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Bayleyegn, T., Faragó, I., Havasi, Á. (2023). On the Consistency and Convergence of Repeated Richardson Extrapolation. In: Georgiev, I., Datcheva, M., Georgiev, K., Nikolov, G. (eds) Numerical Methods and Applications. NMA 2022. Lecture Notes in Computer Science, vol 13858. Springer, Cham. https://doi.org/10.1007/978-3-031-32412-3_5
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