Keywords
chaos
galaxies: kinematics and dynamics
methods: numerical
planets and satellites: dynamical evolution and stability
Astrophysics - Astrophysics of Galaxies
Astrophysics - Earth and Planetary Astrophysics
galaxies: kinematics and dynamics
methods: numerical
planets and satellites: dynamical evolution and stability
Astrophysics - Astrophysics of Galaxies
Astrophysics - Earth and Planetary Astrophysics
How to Cite
On the Correct Computation of All Lyapunov Exponents in Hamiltonian Dynamical Systems. (2023). Revista Mexicana De Astronomía Y Astrofísica, 59(2), 171-175. https://doi.org/10.22201/ia.01851101p.2023.59.02.02
Abstract
The Lyapunov characteristic exponents are a useful indicator of chaos in astronomical dynamical systems. They are usually computed through a standard, very effcient 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.Similar Articles
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