基本细胞自动机的库普曼光谱分析的动态模式分解
Keisuke Taga1, Yuzuru Kato2, Yoshihiro Yamazaki1
1Department of Physics, School of Advanced Science and Engineering, Waseda University, Tokyo 169-8555, Japan.
Chaos (Woodbury, N.Y.)
|January 22, 2024
概括
动态模式分解 (DMD) 方法应用于基本细胞自动机 (ECA). 使用沃尔什函数的扩展的DMD方法成功地重现了ECA动态和库普曼固有值,改进了标准和汉克尔的DMD技术.
科学领域:
- 复杂的系统复杂的系统.
- 动态系统理论 动态系统理论
- 计算科学 计算科学
背景情况:
- 初级细胞自动机 (ECA) 呈现出复杂的动态.
- 动态模式分解 (DMD) 是一种用于分析动态系统的工具.
- 库普曼固有值描述了动态系统的光谱性质.
研究的目的:
- 用不同的DMD方法研究ECA动态和库普曼固有值的可重现性.
- 开发一种改进的DMD技术来分析ECA.
- 探索DMD可重现性的线性代数基础.
主要方法:
- 标准DMD对ECA时间序列的应用.
- 用延迟嵌入时间序列实现汉克尔DMD.
- 开发和应用一个扩展的DMD方法,使用非线性变换时间序列与离散的沃尔什函数.
主要成果:
- 标准的DMD在复制ECA动态和库普曼固有值方面存在局限性.
- 汉克尔DMD提高了复制性,但在特定情况下仍然面临限制.
- 建议使用沃尔什函数扩展的DMD方法实现了动态和库普曼固有值的完整复制.
结论:
- 扩展的DMD方法为分析ECA动态提供了一个强大的方法.
- 沃尔什基于函数的转换对于在离散动态系统中增强DMD是有效的.
- 了解线性代数属性对于DMD方法开发至关重要.
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