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arXiv 1806.09609nlin.CD
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高维异混沌的低维范例

Low-dimensional paradigms for high-dimensional hetero-chaos

Yoshitaka Saiki, Miguel A. F. Sanjuan, James A. Yorke

摘要:

混沌吸引子上的动力学可以是相当异质的,在某些区域比其他区域更不稳定。混沌吸引子的某些区域可以比其他区域在更多维度上扩展。想象这样一种情况,两个这样的区域,每个区域都包含始终停留在区域中的轨迹,而典型的轨迹则在整个吸引子中徘徊。这样的吸引子是“异混沌”(即它具有异质混沌),如果进一步任意接近吸引子的每个点,周期轨道上的点具有不同的不稳定维度。这很难描述,但我们相信大多数拥有高维吸引子的物理系统都是这种类型。我们已经创建了具有这种行为的简化模型,以深入了解真正的高维现象。

英文摘要:

The dynamics on a chaotic attractor can be quite heterogeneous, being much more unstable in some regions than others. Some regions of a chaotic attractor can be expanding in more dimensions than other regions. Imagine a situation where two such regions and each contains trajectories that stay in the region for all time while typical trajectories wander throughout the attractor. Such an attractor is "hetero-chaotic" (i.e. it has heterogeneous chaos) if furthermore arbitrarily close to each point of the attractor there are points on periodic orbits that have different unstable dimensions. This is hard to picture but we believe that most physical systems possessing a high-dimensional attractor are of this type. We have created simplified models with that behavior to give insight to real high-dimensional phenomena.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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