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 0706.1940nlin.CD
收藏

混沌映射和混沌流中周期轨道的有效检测方法

Efficient method for detection of periodic orbits in chaotic maps and flows

Jonathan J. Crofts

摘要:

混沌系统中不稳定周期轨道的检测算法[Phys. Rev. E,60(1999),pp. 6172-6175],其结合了Schmelcher和Diakonos [Phys. Rev. Lett.,78(1997),pp. 4733-4736],并采用改进的半隐式Euler迭代格式和相邻周期的周期轨道作为种子,在应用于低维系统时具有很高的效率。应用该算法的困难,高维系统主要是由于这样的事实,即稳定化变换的数量增长非常快,随着系统的维数增加。在这篇论文中,我们构造稳定化变换的基础上已经检测到的周期轨道(用作种子)的稳定矩阵的知识。我们的方法的优点是在大量减少的转换,这增加了检测算法的效率,特别是在高维系统的情况下的数量。新方法的性能说明其应用程序的四维踢双转子映射,一个六维系统的三个耦合Hénon映射和Kuramoto-Sivashinsky系统在弱湍流制度。

英文摘要:

An algorithm for detecting unstable periodic orbits in chaotic systems [Phys. Rev. E, 60 (1999), pp. 6172-6175] which combines the set of stabilising transformations proposed by Schmelcher and Diakonos [Phys. Rev. Lett., 78 (1997), pp. 4733-4736] with a modified semi-implicit Euler iterative scheme and seeding with periodic orbits of neighbouring periods, has been shown to be highly efficient when applied to low-dimensional system. The difficulty in applying the algorithm to higher dimensional systems is mainly due to the fact that the number of stabilising transformations grows extremely fast with increasing system dimension. In this thesis, we construct stabilising transformations based on the knowledge of the stability matrices of already detected periodic orbits (used as seeds). The advantage of our approach is in a substantial reduction of the number of transformations, which increases the efficiency of the detection algorithm, especially in the case of high-dimensional systems. The performance of the new approach is illustrated by its application to the four-dimensional kicked double rotor map, a six-dimensional system of three coupled Hénon maps and to the Kuramoto-Sivashinsky system in the weakly turbulent regime.

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。

↑