Abstract
Unstable invariant sets, such as unstable periodic orbits and chaotic saddles, can have great effect on the global behaviors of dynamical systems. In this chapter, we investigate how to use the generalized cell mapping (GCM) method to locate these sets. To this end, we improve the GCM method in the following three aspects. First, a new effective algorithm is presented to locate complete self-cycling sets in the linear time. Secondly, the refinement technique is used to accurately locate coexisting unstable invariant sets and also to reveal their detailed structures. In order to make the refinement process robust, two different sampling techniques are presented. Finally, the transient analysis is also investigated. An optimal order for analyzing transient cells which leads to the minimal computational work is presented. We presented some examples to show the effectiveness of the improved GCM method, in particular, for the cases of coexisting unstable invariant sets.
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Acknowledgements
We would like to thank Professors Jun Jiang, Ling Hong, Yanmei Kang and Yong Xie for valuable discussions.
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Zou, HL., Xu, JX. (2012). Unstable Invariant Sets in Nonlinear Dynamical Systems. In: Sun, JQ., Luo, A. (eds) Global Analysis of Nonlinear Dynamics. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-3128-2_6
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DOI: https://doi.org/10.1007/978-1-4614-3128-2_6
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