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Exponentially Fitted Symplectic Runge-Kutta-Nystr šom methods |
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PP: 81-85 |
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Author(s) |
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Th. Monovasilis,
Z. Kalogiratou,
T.E. Simos,
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Abstract |
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| In this work we consider symplectic Runge Kutta Nystršom (SRKN) methods with three stages. We construct a fourth order
SRKN with constant coefficients and a trigonometrically fitted SRKN method. We apply the new methods on the two-dimentional
harmonic oscillator, the Stiefel-Bettis problem and on the computation of the eigenvalues of the Schršodinger equation. |
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