arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0709.3432nlin.CDcond-mat.dis-nnnlin.AOq-bio.NC
收藏

从不稳定吸引子网络到异宿开关的分岔

Bifurcation From Networks of Unstable Attractors to Heteroclinic Switching

Christoph Kirst, Marc Timme

摘要:

我们提出了一个动力系统,自然表现出两个不稳定的吸引子是完全封闭的每个其他盆地体积。这种违反直觉的现象发生在具有延迟相互作用的脉冲耦合振荡器网络中。我们分析和数值研究这一现象,并澄清其背后的机制:在不断消除系统的不可逆性,两个不稳定的吸引子的集合成为一组两个非吸引鞍状态,彼此异相连接。这种从不稳定吸引子网络到异宿环的转变构成了动力系统中一种新的分岔类型。

英文摘要:

We present a dynamical system that naturally exhibits two unstable attractors that are completely enclosed by each others basin volume. This counter-intuitive phenomenon occurs in networks of pulse-coupled oscillators with delayed interactions. We analytically and numerically investigate this phenomenon and clarify the mechanism underlying it: Upon continuously removing the non-invertibility of the system, the set of two unstable attractors becomes a set of two non-attracting saddle states that are heteroclinically connected to each other. This transition from a network of unstable attractors to a heteroclinic cycle constitutes a new type of bifurcation in dynamical systems.

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。

↑