High Order Two-Derivative Runge-Kutta Methods with Optimized Dispersion and Dissipation Error

Theodoros Monovasilis and Zacharoula Kalogiratou
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Theodoros Monovasilis: Department of Economics, University of Western Macedonia, 501 00 Kozani, Greece
Zacharoula Kalogiratou: Department of Informatics, University of Western Macedonia, 501 00 Kozani, Greece

Mathematics, 2021, vol. 9, issue 3, 1-11

Abstract: In this work we consider explicit Two-derivative Runge-Kutta methods of a specific type where the function f is evaluated only once at each step. New 7th order methods are presented with minimized dispersion and dissipation error. These are two methods with constant coefficients with 5 and 6 stages. Also, a modified phase-fitted, amplification-fitted method with frequency dependent coefficients and 5 stages is constructed based on the 7th order method of Chan and Tsai. The new methods are applied to 4 well known oscillatory problems and their performance is compared with the methods in that of Chan and Tsai.The numerical experiments show the efficiency of the derived methods.

Keywords: Two-derivative Runge-Kutta methods; dispersion; dissipation; orbital problems (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
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