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Generalized synchronization of strictly different systems: Partial-state synchrony

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  • Barajas Ramírez, J.G.
  • Cuéllar Galarza, K.P.
  • Femat, R.

Abstract

Generalized synchronization (GS) occurs when the states of one system, through a functional mapping are equal to states of another. Since for many physical systems only some state variables are observable, it seems convenient to extend the theoretical framework of synchronization to consider such situations. In this contribution, we investigate two variants of GS which appear between strictly different chaotic systems. We consider that for both the drive and response systems only one observable is available. For the case when both systems can be taken to a complete triangular form, a GS can be achieved where the functional mapping between drive and response is found directly from their Lie-algebra based transformations. Then, for systems that have dynamics associated to uncontrolled and unobservable states, called internal dynamics, where only a partial triangular form is possible via coordinate transformations, for this situation, a GS is achieved for which the coordinate transformations describe the functional mapping of only a few state variables. As such, we propose definitions for complete and partial-state GS. These particular forms of GS are illustrated with numerical simulations of well-known chaotic benchmark systems.

Suggested Citation

  • Barajas Ramírez, J.G. & Cuéllar Galarza, K.P. & Femat, R., 2012. "Generalized synchronization of strictly different systems: Partial-state synchrony," Chaos, Solitons & Fractals, Elsevier, vol. 45(3), pages 193-204.
  • Handle: RePEc:eee:chsofr:v:45:y:2012:i:3:p:193-204
    DOI: 10.1016/j.chaos.2011.12.005
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    References listed on IDEAS

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    1. Zhang, Gang & Liu, Zengrong & Ma, Zhongjun, 2007. "Generalized synchronization of different dimensional chaotic dynamical systems," Chaos, Solitons & Fractals, Elsevier, vol. 32(2), pages 773-779.
    2. Ge, Zheng-Ming & Yang, Cheng-Hsiung, 2008. "The generalized synchronization of a Quantum-CNN chaotic oscillator with different order systems," Chaos, Solitons & Fractals, Elsevier, vol. 35(5), pages 980-990.
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