Infinite automaton semigroups and groups have infinite orbits

D'Angeli, D; Francoeur, D; Rodaro, E; Wachter, JP

D'Angeli, D (corresponding author), Univ Niccolo Cusano, Via Don Gnocchi 3, I-00166 Rome, Italy.

JOURNAL OF ALGEBRA, 2020; 553 (): 119

Abstract

We show that an automaton group or semigroup is infinite if and only if it admits an omega-word (i.e. a right-infinite word) with an infinite orbit, w......

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