On two-generator subgroups of mapping torus groups

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

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