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arXiv · 1610.00331

Comparing 1D and 2D Real Time on Cellular Automata

Anaël Grandjean·Victor Poupet
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Abstract

We study the influence of the dimension of cellular automata (CA) for real time language recognition of one-dimensional languages with parallel input. Specifically, we focus on the question of determining whether every language that can be recognized in real time on a 2-dimensional CA working on the Moore neighborhood can also be recognized in real time by a 1-dimensional CA working on the standard two-way neighborhood. We show that 2-dimensional CA in real time can perform a linear number of simulations of a 1-dimensional real time CA. If the two classes are equal then the number of simulated instances can be polynomial.

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Anaël Grandjean, Victor Poupet. 2016-10-02. Comparing 1D and 2D Real Time on Cellular Automata. https://doi.org/10.4230/lipics.stacs.2015.367

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