Ulam's cellular automaton and Rule 150 (Q482848)

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scientific article; zbMATH DE number 6383632
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Ulam's cellular automaton and Rule 150
scientific article; zbMATH DE number 6383632

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    Ulam's cellular automaton and Rule 150 (English)
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    6 January 2015
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    Ulam introduced a non-linear almost equicontinuous two-dimensional cellular automaton as a cell model of crystalline growth in 1962 [\textit{S. M. Ulam}, in: Essays cellular Automata 219--231 (1970; Zbl 0241.94048)]. Here it is shown that this model contains as a subsystem a linear chaotic elementary cellular automaton. The inverse process to ultradiscretization is studied on the system, and it is shown that the resulting partial differential equation preserves the self-organising properties of Ulam's cellular automaton.
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    cellular automaton
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    symbolic dynamics
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    linear chaos
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    almost equicontinuity
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    inverse ultradiscretization
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    fractal pattern
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