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arXiv 1303.4045nlin.CGcs.NAmath.NAnlin.SI
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从基本图获得的一维粒子元胞自动机的最大-最小-加表达式

Max-min-plus expressions for one-dimensional particle cellular automata obtained from a fundamental diagram

Waseda University(早稻田大学)

Takazumi Okumura, Junta Matsukidaira, Daisuke Takahashi

AI总结:

研究一维邻域五保守元胞自动机(粒子CA5),通过基本图得到其最大-最小-加形式的演化方程,并利用超离散Cole-Hopf变换分析渐近行为。

摘要:

我们研究一维邻域五保守元胞自动机(CA),称为粒子元胞自动机五(粒子CA5)。我们展示了属于某些类型的粒子CA5的演化方程可以从基本图以最大-最小-加表达式的形式获得。通过超离散Cole-Hopf变换,得到的方程被转化为其他最大-最小-加表达式,这使我们能够分析一般解的渐近行为。还给出了描述粒子运动的拉格朗日表示中的方程,这些方程也可以从基本图获得。最后,我们讨论了对一维保守邻域$n$ CA(即粒子CA$n$)的推广。

英文摘要:

We study one-dimensional neighborhood-five conservative cellular automata (CA), referred to as particle cellular automata five (particle CA5). We show that evolution equations for particle CA5s that belong to certain types can be obtained in the form of max-min-plus expressions from a fundamental diagram. The obtained equations are transformed into other max-min-plus expressions by ultradiscrete Cole-Hopf transformation, which enable us to analyze the asymptotic behaviors of general solutions. The equations in the Lagrange representation, which describe particle motion, are also presented, which too can be obtained from a fundamental diagram. Finally, we discuss the generalization to a one-dimensional conservative neighborhood-$n$ CA, i.e., particle CA$n$.

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