On the profinite rigidity of surface groups and surface words

Surface groups are determined among limit groups by their profinite completions. As a corollary, the set of surface words in a free group is closed in the profinite topology.

Bibliographic Details
Main Author: Wilton, Henry
Format: Article
Language:English
Published: Académie des sciences 2021-03-01
Series:Comptes Rendus. Mathématique
Online Access:https://comptes-rendus.academie-sciences.fr/mathematique/articles/10.5802/crmath.121/