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Zbl 0927.65097
Paternoster, B.
Runge-Kutta(-Nyström) methods for ODEs with periodic solutions based on trigonometric polynomials. (English)
[J] Appl. Numer. Math. 28, No.2-4, 401-412 (1998). ISSN 0168-9274

The paper is concerned with initial value problems for ordinary differential equations (ODEs) whose solutions are a priori known to oscillate with a known frequency. Runge-Kutta methods are applied to first-order problems and Runge-Kutta-Nyström methods to second-order problems. {\it P. Albrecht}'s approach [SIAM J. Numer. Anal. 24, 391-406 (1987; Zbl 0617.65067); Teubner-Texte Math. 104, 8-18 (1988; Zbl 0682.65041)] is considered and the concept of trigonometric order of the method is used. The Runge-Kutta and Runge-Kutta-Nyström methods derived in this paper have low orders (1 or 2) and integrate trigonometric polynomials exactly. Two numerical examples are performed for comparison to others-Runge-Kutta-Nyström methods.
[Iulian Coroian (Baia Mare)]

MSC 2000:: *65L06 Multistep, Runge-Kutta, and extrapolation methods
65L05 Initial value problems for ODE (numerical methods)
34C25 Periodic solutions of ODE
34A34 Nonlinear ODE and systems, general

Keywords: initial value problems; Runge-Kutta-Nyström methods; periodic solution; first-order problems; second-order problems; trigonometric polynomials; numerical examples

Citations: Zbl 0617.65067; Zbl 0682.65041

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