A time-parallel algorithm for almost integrable Hamiltonian systems

Details A time-parallel algorithm for almost integrable Hamiltonian systems A time-parallel algorithm for almost integrable Hamiltonian systems

2011-06-18

arxiv.org/abs/1106.3694v1

Computer Science

Numerical Analysis

19 pages, 6 figures

Scientific paper

We introduce a time-parallel algorithm for solving numerically almost integrable Hamiltonian systems in action-angle coordinates. This algorithm is a refinement of that introduced by Saha, Stadel and Tremaine in 1997 (SST97) for the same type of problems. Our refined algorithm has a better convergence obtained from the use of derivatives of the perturbing term not considered in the original SST97 algorithm. An advantage of this algorithm is its independence of the step-size for the parallelized procedures which can be consider as a particular case of the parareal scheme.

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