On groups with EDT0L word problem

Fuente: arXiv
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Hauptverfasser: Bishop, Alex, Elder, Murray, Evetts, Alex, Gallot, Paul, Levine, Alex
Format: Preprint
Veröffentlicht: 2025
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author Bishop, Alex
Elder, Murray
Evetts, Alex
Gallot, Paul
Levine, Alex
author_facet Bishop, Alex
Elder, Murray
Evetts, Alex
Gallot, Paul
Levine, Alex
contents We prove that the word problem for the infinite cyclic group is not EDT0L, and obtain as a corollary that a finitely generated group with EDT0L word problem must be torsion. In addition, we show that the property of having an EDT0L word problem is invariant under change of generating set and passing to finitely generated subgroups. This represents significant progress towards the conjecture that all groups with EDT0L word problem are finite (i.e. precisely the groups with regular word problem).
format Preprint
id arxiv_https___arxiv_org_abs_2505_20057
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On groups with EDT0L word problem
Bishop, Alex
Elder, Murray
Evetts, Alex
Gallot, Paul
Levine, Alex
Group Theory
Formal Languages and Automata Theory
20F10, 68Q42, 20F65
We prove that the word problem for the infinite cyclic group is not EDT0L, and obtain as a corollary that a finitely generated group with EDT0L word problem must be torsion. In addition, we show that the property of having an EDT0L word problem is invariant under change of generating set and passing to finitely generated subgroups. This represents significant progress towards the conjecture that all groups with EDT0L word problem are finite (i.e. precisely the groups with regular word problem).
title On groups with EDT0L word problem
topic Group Theory
Formal Languages and Automata Theory
20F10, 68Q42, 20F65
url https://arxiv.org/abs/2505.20057