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COMPETITIVE MODES AND THEIR APPLICATION

WEIGUANG YAO

Department of Applied Mathematics, The University of Western Ontario, London, Ontario, Canada N6A 5B7, Canada

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PEI YU

Department of Applied Mathematics, The University of Western Ontario, London, Ontario, Canada N6A 5B7, Canada

Author for correspondence.

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CHRISTOPHER ESSEX

Department of Applied Mathematics, The University of Western Ontario, London, Ontario, Canada N6A 5B7, Canada

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, and

MATT DAVISON

Department of Applied Mathematics, The University of Western Ontario, London, Ontario, Canada N6A 5B7, Canada

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https://doi.org/10.1142/S0218127406014976Cited by:19 (Source: Crossref)

Abstract

We investigate nonlinear dynamical systems from the mode competition point of view, and propose the necessary conditions for a system to be chaotic. We conjecture that a chaotic system has at least two competitive modes (CM's). For a general nonlinear dynamical system, we give a simple, dynamically motivated definition of mode suitable for this concept. Since for most chaotic systems it is difficult to obtain the form of a CM, we focus on the competition between the corresponding modulated frequency components of the CM's. Some direct applications result from the explicit form of the frequency functions. One application is to estimate parameter regimes which may lead to chaos. It is shown that chaos may be found by analyzing the frequency function of the CM's without applying a numerical integration scheme. Another application is to create new chaotic systems using custom-designed CM's. Several new chaotic systems are reported.

Keywords:

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