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01-Applied Mathematics & Information Sciences
An International Journal


Volumes > Volume 7 > No. 1


Exponentially Fitted Symplectic Runge-Kutta-Nystr šom methods

PP: 81-85
Th. Monovasilis, Z. Kalogiratou, T.E. Simos,
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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