Stefano Vidussi

collaborators

3 papers

math.GR2025

Higher incoherence of the automorphism groups of a free group

Stefano Vidussi

Let $F_{n}$ be the free group on $n \geq 2$ generators. We show that for all $1 \leq m \leq 2 n - 3$ (respectively for all $1 \leq m \leq 2 n - 4$ ) there exists a subgroup of $\operatornam…

math.GR2025

On two-generator subgroups of mapping torus groups

Naomi Andrew, Edgar A. Bering, Ilya Kapovich +2

We prove that if $G_{I ¨} = ⟨ F, t ∣ t x t^{- 1} = I ¨ (x), x \in F ⟩$ is the mapping torus group of an injective endomorphism $I ¨ : F \to F$ of a free group $F$ (of possibly infinit…

math.GT2025

Profinite rigidity of KÃ¤hler groups: Riemann surfaces and subdirect products

Sam Hughes, Claudio Llosa Isenrich, Pierre Py +2

This paper establishes strong profinite rigidity results for KÃ¤hler groups, showing that certain groups are determined within the class of residually finite KÃ¤hler groups by thei…