Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 1996
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996cemda..66..243l&link_type=abstract
Celestial Mechanics and Dynamical Astronomy, Volume 66, Issue 3, pp.243-253
Astronomy and Astrophysics
Astronomy
Hamiltonian System, Inseparable, Nearly Integrable, Implicit Symplectic Integrator
Scientific paper
In this paper, following the idea of constructing the mixed symplectic integrator (MSI) for a separable Hamiltonian system, we give a low order mixed symplectic integrator for an inseparable, but nearly integrable, Hamiltonian system, Although the difference schemes of the integrators are implicit, they not only have a small truncation error but, due to near integrability, also a faster convergence rate of iterative solution than ordinary implicit integrators, Moreover, these second order integrators are time-reversible.
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