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Space-time directional Lyapunov exponents for cellular automata

Maurice Courbage·Brunon Kaminski
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Abstract

Space-time directional Lyapunov exponents are introduced. They describe the maximal velocity of propagation to the right or to the left of fronts of perturbations in a frame moving with a given velocity. The continuity of these exponents as function of the velocity and an inequality relating them to the directional entropy is proved.

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Maurice Courbage, Brunon Kaminski. 2006-03-24. Space-time directional Lyapunov exponents for cellular automata. https://doi.org/10.1007/s10955-006-9172-1

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