3 papers
math.GR2025
On the ET0L subgroup membership problem in bounded automata groups
Alex Bishop, Daniele D'Angeli, Francesco Matucci +3
We are interested in the subgroup membership problem in groups acting on rooted -regular trees and a natural class of subgroups, the stabilisers of infinite rays emanating from…
math.GR2025
Context-free graphs and their transition groups
Daniele D'Angeli, Francesco Matucci, Davide Perego +1
Starting from context-free inverse graphs, we introduce a new class of groups and study their structural properties. We establish closure properties, show that their co-word proble…
math.CO2025
Horofunctions of infinite Sierpinski polygon graphs
Daniele D'Angeli, Francesco Matucci, Davide Perego +1
Generalizing works of D'Angeli and Donno, we describe, starting from an infinite sequence over letters with and , a sequence of pointed finite gra…