arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1107.3185math.DS
收藏

奇异Hopf分支的开折

Unfoldings of singular Hopf bifurcation

John Guckenheimer, Philipp Meerkamp

摘要:

具有两个慢变量和一个快变量的一般向量场族中存在奇异Hopf分支。这种分叉的范式依赖于几个参数,范式所显示的动力学是复杂的。本文分析了这种分歧的一个标准形。给出了系统平衡点分岔和接近奇异Hopf分岔的周期轨道的扩展图。此外,参数的确定,有一个不变流形之间的相切是重要的混合模式振荡的出现在系统附近的奇异Hopf分岔。将规范形中的一个参数确定为主分叉参数,给出了主分叉参数变化时出现的分叉序列目录。这些结果被施加到估计的混合模式振荡的化学振荡模型中的发病参数。

英文摘要:

Singular Hopf bifurcation occurs in generic families of vector-fields with two slow variables and one fast variable. Normal forms for this bifurcation depend upon several parameters, and the dynamics displayed by the normal forms is intricate. This paper analyzes a normal form for this bifurcation. It presents extensive diagrams of bifurcations of equilibrium points and periodic orbits that are close to singular Hopf bifurcation. In addition, parameters are determined where there is a tangency between invariant manifolds that are important in the appearance of mixed-mode oscillations in systems near singular Hopf bifurcation. One parameter of the normal form is identified as the primary bifurcation parameter, and the paper presents a catalog of bifurcation sequences that occur as the primary bifurcation parameter is varied. These results are applied to estimate the parameters for the onset of mixed-mode oscillations in a model of chemical oscillations.

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。

↑