Surjective cellular automata far from the Garden of Eden
: Silvio Capobianco, Pierre Guillon, Jarkko Kari
Publisher: Discrete Mathematics & Theoretical Computer Science
: 2013
: Discrete Mathematics and Theoretical Computer Science
: DMTCS
: 3
: 15
: 3
: 41
: 60
: 20
: 1462-7264
DOI: https://doi.org/10.46298/dmtcs.618
: https://dx.doi.org/10.46298/dmtcs.618
: https://research.utu.fi/converis/portal/detail/Publication/2052752
One of the first and most famous results of cellular automata theory, Moore’s Garden-of-Eden theorem has been proven to hold if and only if the underlying group possesses the measure-theoretic properties suggested by von Neumann to be the obstacle to the Banach-Tarski paradox. We show that several other results from the literature, already known to characterize surjective cellular automata in dimension d, hold precisely when the Garden-of-Eden theorem does. We focus in particular on the balancedness theorem, which has been proven by Bartholdi to fail on amenable groups, and we measure the amount of such failure.