Original title: Strategies for computation of Lyapunov exponents estimates from discrete data
Authors: Fischer, Cyril ; Náprstek, Jiří
Document type: Papers
Conference/Event: Programs and Algorithms of Numerical Mathematics /19./, Hejnice (CZ), 20180624
Year: 2019
Language: eng
Abstract: The Lyapunov exponents (LE) provide a simple numerical measure of the sensitive dependence of the dynamical system on initial conditions. The positive LE in dissipative systems is often regarded as an indicator of the occurrence of deterministic chaos. However, the values of LE can also help to assess stability of particular solution branches of dynamical systems. The contribution brings a short review of two methods for estimation of the largest LE from discrete data series. Two methods are analysed and their freely available Matlab implementations are tested using two sets of discrete data: the sampled series of the Lorenz system and the experimental record of the movement of a heavy ball in a spherical cavity. It appears that the most important factor in LE estimation from discrete data series is quality of the available record.
Keywords: data analysis; dynamical system; Lyapunov exponents; stability
Project no.: GC17-26353J (CEP)
Funding provider: GA ČR
Host item entry: Programs and algorithms of numerical mathematics 19, ISBN 978-80-85823-69-1
Note: Související webová stránka: http://dml.cz/dmlcz/703087

Institution: Institute of Theoretical and Applied Mechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0295876

Permalink: http://www.nusl.cz/ntk/nusl-394342


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Research > Institutes ASCR > Institute of Theoretical and Applied Mechanics
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