Infinite towers in the graphs of many dynamical systems
Infinite towers in the graphs of many dynamical systems
复制标题
许多动力系统图中的无限塔
DOI:
10.1007/s11071-021-06561-6
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发表时间:
2021
影响因子:
5.6
通讯作者:
Yorke, James A.
中科院分区:
文献类型:
--
作者:
De Leo, Roberto;Yorke, James A.
Chaotic attractors, chaotic saddles and periodic orbits are examples of chain-recurrent sets. Using arbitrary small controls, a trajectory starting from any point in a chain-recurrent set can be steered to any other in that set. The qualitative behavior of a dynamical system can be encapsulated in a graph. Its nodes are chain-recurrent sets. There is an edge from node A to node B if, using arbitrary small controls, a trajectory starting from any point of A can be steered to any point of B. We discuss physical systems that have infinitely many disjoint coexisting nodes. Such infinite collections can occur for many carefully chosen parameter values. The logistic map is such a system, as we show in a rigorous companion paper. To illustrate these very common phenomena, we compare the Lorenz system and the logistic map and we show how extremely similar their graph bifurcation diagrams are in some parameter ranges. Typically, bifurcation diagrams show how attractors change as a parameter is varied. We call ours “graph bifurcation diagrams” to reflect that not only attractors but also unstable periodic orbits and chaotic saddles can be shown. Only the most prominent ones can be shown. We argue that, as a parameter is varied in the Lorenz system, there are uncountably many parameter values for which there are infinitely many nodes, and infinitely many of the nodes N 1, N 2, N 3,…, N∞ can be selected so that the graph has an edge from each node to every node with a node with a higher number. The final node N∞ is an attractor.
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影响因子:
1.3
作者:
B. Fiedler;C. Rocha
通讯作者:
C. Rocha
DOI:
10.1007/bf02684770
发表时间:
1979-12
期刊:
Publications Mathématiques de l'Institut des Hautes Études Scientifiques
影响因子:
--
作者:
Mathématiques DE L’I.H.É.S;Robert F. Williams
通讯作者:
Mathématiques DE L’I.H.É.S;Robert F. Williams
影响因子:
1.3
作者:
A. Sharkovsky;S. Kolyada;A. Sivak;V. Fedorenko
通讯作者:
V. Fedorenko
DOI:
10.1016/b978-0-12-743650-0.50008-3
发表时间:
1972
影响因子:
1.3
作者:
C. Conley
通讯作者:
C. Conley
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
W. D. Melo
通讯作者:
W. D. Melo