Recent Progress in the Theory and Application of Symplectic Integrators

Details Recent Progress in the Theory and Application of Symplectic Integrators Recent Progress in the Theory and Application of Symplectic Integrators

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993cemda..56...27y&link_type=abstract

Celestial Mechanics and Dynamical Astronomy, Volume 56, Issue 1-2, pp. 27-43

Astronomy and Astrophysics

Astronomy

133

Numerical Integration Methods, Long Time Evolution, Symplectic Mapping

Scientific paper

In this paper various aspect of symplectic integrators are reviewed. Symplectic integrators are numerical integration methods for Hamiltonian systems which are designed to conserve the symplectic structure exactly as the original flow. There are explicit symplectic schemes for systems of the formH=T(p)+V(q), and implicit schemes for general Hamiltonian systems. As a general property, symplectic integrators conserve the energy quite well and therefore an artificial damping (excitation) caused by the accumulation of the local truncation error cannot occur. Symplectic integrators have been applied to the Kepler problem, the motion of minor bodies in the solar system and the long-term evolution of outer planets.

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