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arXiv nlin/0502012nlin.CDmath.DSnlin.PSq-bio.PE
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三维Logistic型映射的混沌路径

Route to Chaos in Three-Dimensional Maps of Logistic Type

Daniele Fournier-Prunaret, Ricardo Lopez-Ruiz, Abdel-Kaddous Taha

摘要:

研究了三维Logistic型映射的一种混沌途径。对于特定的三维映射,我们发现了不变闭曲线(ICC)的倍周期机制。这些分叉不能观察到的ICC在2维的情况下。当系统参数改变时,ICC发生局部振荡,产生弱混沌环,然后产生混沌吸引子,最后通过接触分岔消失.这些地图可以被认为是三个物种的共生相互作用的模型。

英文摘要:

A route to chaos is studied in 3-dimensional maps of logistic type. Mechanisms of period doubling for invariant closed curves (ICC) are found for specific 3-dimensional maps. These bifurcations cannot be observed for ICC in the 2-dimensional case. When the parameter of the system is modified, localized oscillations occur on the ICC that give rise to weakly chaotic rings, then to chaotic attractors, which finally disappear by contact bifurcations. These maps can be considered as models for the symbiotic interaction of three species.

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