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On the Synchronisation Problem over Cellular Automata

Author Gaétan Richard

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Keywords
  • cellular automata
  • dynamical systems
  • aperiodic tiling
  • synchronisation

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Abstract

Cellular automata are a discrete, synchronous, and uniform dynamical system that give rise to a wide range of dynamical behaviours. In this paper, we investigate whether this system can achieve synchronisation. We study the cases of classical bi-infinite configurations, periodic configurations, and periodic configurations of prime period. In the two former cases, we prove that only a "degenerated" form of synchronisation - there exists a fix-point - is possible. In the latter case, we give an explicit construction of a cellular automaton for which any periodic configuration of prime period eventually converges to cycle of two uniform configurations. Our construction is based upon sophisticated tools: aperiodic NW-deterministic tilings and partitioned intervals.

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Gaétan Richard. On the Synchronisation Problem over Cellular Automata. In 34th Symposium on Theoretical Aspects of Computer Science (STACS 2017). Leibniz International Proceedings in Informatics (LIPIcs), Volume 66, pp. 54:1-54:13, Schloss Dagstuhl – Leibniz-Zentrum für Informatik (2017) https://doi.org/10.4230/LIPIcs.STACS.2017.54

Author Details

Gaétan Richard

References

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