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Crises, sudden changes in chaotic attractors, and transient chaos. (English) Zbl 0561.58029
Order in chaos, Proc. int. Conf., Los Alamos/N.M. 1982, Physica 7D, 181-200 (1983).

[For the entire collection see Zbl 0536.00007.]

From the authors’ summary: The occurrence of sudden qualitative changes of chaotic dynamics as a parameter is varied is discussed and illustrated. It is shown that such changes may result from the collision of an unstable periodic orbit and a coexisting chaotic attractor. We call such collisions crises. Phenomena associated with crises include sudden changes in the size of chaotic attractors, sudden appearances of chaotic attractors (a possible route to chaos), and sudden destructions of chaotic attractors and their basins. This paper presents examples illustrating that crisis events are prevalent in many circumstances and systems, and that, just past a crisis, certain characteristic statistical behavior (whose type depends on the type of crisis) occurs. In particular the phenomenon of chaotic transients is investigated. The examples discussed illustrate crises in progressively higher dimension and include the one-dimensional quadratic map, the (two-dimensional) Hénon map, systems of ordinary differential equations in three dimensions and a three-dimensional map.

Reviewer: G.Keller

MSC:
37D45Strange attractors, chaotic dynamics
37A99Ergodic theory
37C70Attractors and repellers, topological structure