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Self-stabilization of Circular Arrays of Automata

Leonid A. Levin

cs.DCarXiv:cs/0602033

Abstract

[Gacs, Kurdiumov, Levin, 78] proposed simple one-dimensional cellular automata with 2 states. In an infinite array they are self-stabilizing: if all but a finite minority of automata are in the same state, the minority states disappear. Implicit in the paper was a stronger result that a sufficiently small minority of states vanish even in a finite circular array. The following note makes this strengthening explicit.

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