Sixth-order symmetric and symplectic exp
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M. Calvo; J.M. Franco; J.I. Montijano; L. Rández
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Article
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2009
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Elsevier Science
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English
⚖ 764 KB
The construction of exponentially fitted Runge-Kutta (EFRK) methods for the numerical integration of Hamiltonian systems with oscillatory solutions is considered. Based on the symplecticness, symmetry, and exponential fitting properties, two new threestage RK integrators of the Gauss type with fixed