On two-generator subgroups of mapping torus groups

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

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