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This paper introduces three types of dynamical indicators that capture the effect of uncertainty on the time evolution of dynamical systems. Two indicators are derived from the definition of Finite Time Lyapunov Exponents while a third indicator directly exploits the property of the polynomial expansion of the dynamics with respect to the uncertain quantities. The paper presents the derivation of the indicators and a number of numerical experiments that illustrates the use of these indicators to depict a cartography of the phase space under parametric uncertainty and to identify robust initial conditions and regions of practical stability in the restricted three-body problem.
|Number of pages||35|
|Journal||Celestial Mechanics and Dynamical Astronomy|
|Publication status||Published - 24 Jan 2023|
- uncertainty quantification
- polynomial chaos expansion
- finite-time Lyapunov exponent
- random walks
- anomalous diffusion
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- 1 Finished
Stardust-R (Stardust Reloaded) H2020 MCSA ITN 2018
Vasile, M., Feng, J., Fossati, M., Maddock, C., Minisci, E. & Riccardi, A.
European Commission - Horizon 2020
1/01/19 → 31/12/22