Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Massive evaluation and analysis of Poincaré recurrences on grids of initial data : A tool to map chaotic diffusion. / Shevchenko, Ivan I.; Rollin, Guillaume; Melnikov, Alexander V.; Lages, José.
в: Computer Physics Communications, Том 246, 106868, 01.2020.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Massive evaluation and analysis of Poincaré recurrences on grids of initial data
T2 - A tool to map chaotic diffusion
AU - Shevchenko, Ivan I.
AU - Rollin, Guillaume
AU - Melnikov, Alexander V.
AU - Lages, José
PY - 2020/1
Y1 - 2020/1
N2 - We present a novel numerical method aimed to characterize global behaviour, in particular chaotic diffusion, in dynamical systems. It is based on an analysis of the Poincaré recurrence statistics on massive grids of initial data or values of parameters. We concentrate on Hamiltonian systems, featuring the method separately for the cases of bounded and non-bounded phase spaces. The embodiments of the method in each of the cases are specific. We compare the performances of the proposed Poincaré recurrence method (PRM) and the custom Lyapunov exponent (LE) methods and show that they expose the global dynamics almost identically. However, a major advantage of the new method over the known global numerical tools, such as LE, FLI, MEGNO, and FA, is that it allows one to construct, in some approximation, charts of local diffusion timescales. Moreover, it is algorithmically simple and straightforward to apply.
AB - We present a novel numerical method aimed to characterize global behaviour, in particular chaotic diffusion, in dynamical systems. It is based on an analysis of the Poincaré recurrence statistics on massive grids of initial data or values of parameters. We concentrate on Hamiltonian systems, featuring the method separately for the cases of bounded and non-bounded phase spaces. The embodiments of the method in each of the cases are specific. We compare the performances of the proposed Poincaré recurrence method (PRM) and the custom Lyapunov exponent (LE) methods and show that they expose the global dynamics almost identically. However, a major advantage of the new method over the known global numerical tools, such as LE, FLI, MEGNO, and FA, is that it allows one to construct, in some approximation, charts of local diffusion timescales. Moreover, it is algorithmically simple and straightforward to apply.
KW - Celestial mechanics
KW - Dynamical chaos
KW - Dynamical systems
KW - Lyapunov exponents
KW - Numerical methods
KW - Poincaré recurrences
KW - PLANETS
KW - COMPUTE
KW - STABILITY
KW - Poincare recurrences
KW - MULTIDIMENSIONAL SYSTEMS
KW - MOTION
KW - GLOBAL DYNAMICS
KW - ENTROPY
UR - http://www.scopus.com/inward/record.url?scp=85071311224&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/massive-evaluation-analysis-poincar%C3%A9-recurrences-grids-initial-data-tool-map-chaotic-diffusion
U2 - 10.1016/j.cpc.2019.106868
DO - 10.1016/j.cpc.2019.106868
M3 - Article
AN - SCOPUS:85071311224
VL - 246
JO - Computer Physics Communications
JF - Computer Physics Communications
SN - 0010-4655
M1 - 106868
ER -
ID: 45986864