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  • 學位論文

可加性細胞自動機上的熵

On the Entropy of Additive Cellular Automata

指導教授 : 林松山

摘要


本篇論文討論任意有限狀況的可加性細胞自動機(cellular automata),並利用拓樸共軛(topological conjugate)與測度同構(measure isomorphic)的特性給予拓樸熵(topological entropy)及在伯努利測度(Bernoulli measure)下測度熵(measure-theoretic entropy)的公式。藉由拓樸熵與測度熵的公式能找到滿足變分原理(Variational Principle)的最大測度(maximum measure),可用於物理的應用上。

關鍵字

細胞自動機 測度熵 拓樸熵 最大測度

並列摘要


In this paper we consider the additive cellular automata with any finite states, we take the properties of the topological conjugate and measure isomorphic to give a formula for topological entropy and measure-theoretic entropy with Bernoulli measure. After having the measure-theoretic entropy formula and the topological entropy formula, we can find the maximum measure such that satisfy the Variational Principle, and more apply in physics.

參考文獻


[1] H. Akin. On the measure entropy of additive cellular automata f_{infinity}. Entropy, 5:233{238,2003.
[2] J.-C. Ban, C.-H. Chang, T.-J. Chen, and M.-S. Lin. The complexity of permutive cellular automata. submitted.
[3] M. D'amico, G. Manzini, and L. Margara. On computing the entropy of cellular automata. Theor. Comput. Sci., 290:1629V1646, 2003.
[4] O. Martin, A. M. Odlyzko, and S. Wolfram. Algebraic properties of cellular automata. Commun. Math. Phys., 93:219{258, 1984.
[6] T. Ward. Additive cellular automata and volume growth. Entropy, 2:142{167, 2000.1

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