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Open Access item Measuring Chaos from Spatial Information

Authors:Solé, Ricard V.
Bascompte, Jordi
Issue Date:Jul-1995
Publisher:Academic Press
Citation:J. theor. Biol. (1995) 175, 139–147
Abstract:A new class of Lyapunov exponents are calculated from a simple numerical approach based on a spatially de_ned average of local divergence of trajectories[ This is a new way of identifying chaos in ecological data where\ because of its limited length and quality\ current techniques derived from the dynamical systems theory are not applicable[ In the examples presented\ only a very short time series "around 09 time steps# is necessary for obtaining a close estimate of the spatiotemporal Lyapunov exponent if the lattice size is high enough[ The method is applied to three previously studied coupled map lattice models and is shown to be a good measure for spatiotemporal chaos and an alternative way of estimating the underlying dimension[
Publisher version (URL):http://dx.doi.org/10.1006/jtbi.1995.0126
URI:http://hdl.handle.net/10261/44291
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