2 papers
math.GR2026
Thue-Morse sequence and groups of intermediate growth
Rostislav Grigorchuk, Yaroslav Vorobets
We consider the substitution subshift generated by the Thue-Morse substitution , . We prove that the topological full group of the subshift contains a subgroup of i…
math.GR2024
Liftable self-similar groups and scale groups
Rostislav Grigorchuk, Dmytro Savchuk
We canonically identify the groups of isometries and dilations of local fields and their rings of integers with subgroups of the automorphism group of the -regular tree $\wi…