On the correct computation of all Lyapunov exponents in Hamiltonian dynamical systems
Astrophysics of Galaxies
2023-04-06 v1 Earth and Planetary Astrophysics
Abstract
The Lyapunov Characteristic Exponents are a useful indicator of chaos in astronomical dynamical systems. They are usually computed through a standard, very efficient and neat algorithm published in 1980. However, for Hamiltonian systems the expected result of pairs of opposite exponents is not always obtained with enough precision. We find here why in these cases the initial order of the deviation vectors matters, and how to sort them in order to obtain a correct result.
Keywords
Cite
@article{arxiv.2304.02503,
title = {On the correct computation of all Lyapunov exponents in Hamiltonian dynamical systems},
author = {Daniel D. Carpintero and J. C. Muzzio},
journal= {arXiv preprint arXiv:2304.02503},
year = {2023}
}
Comments
8 pages, 3 figures