Discovering independent parameters in complex dynamical systems

Claudia Lainscsek, Jonathan Weyhenmeyer, Terrence J. Sejnowski and Christophe Letellier

Chaos, Solitons & Fractals, 2015, vol. 76, issue C, 182-189

Abstract: The transformation of a nonlinear dynamical system into a standard form by using one of its variables and its successive derivatives can be used to identify the relationships that may exist between the parameters of the original system such as the subset of the parameter space over which the dynamics is left invariant. We show how the size of the attractor or the time scale (the pseudo-period) can be varied without affecting the underlying dynamics. This is demonstrated for the Rössler and the Lorenz systems. We also consider the case when two Rössler systems are unidirectionally coupled and when a Lorenz system is driven by a Rössler system. In both cases, the dynamics of the coupled system is affected.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:76:y:2015:i:c:p:182-189

DOI: 10.1016/j.chaos.2015.04.001

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