Benjamin L. Jeffers

collaborators

Showing math.GRShow all

2 papers · 1 filter

math.GR2022

Linearly Mismatched Free-by-Cyclic Groups are Asynchronously Automatic

Benjamin Gustafson, Benjamin L. Jeffers

We call the family of free-by-cyclic groups defined by $G = ⟨ a, t, b_{1}, b_{2}, \dots b_{k} ∣ a t = t a, b_{1}^{- 1} t b_{1} = a^{n_{1}} t, \dots b_{k}^{- 1} t b_{k} = a^{n_{k}} t ⟩$ for $n_…

math.GR2022

Structure of Cross-wired Lamplighter Groups

Benjamin L. Jeffers

We answer a question posed by Cornulier, Fisher, and Kashyap, proving that for a closed cocompact subgroup $Γ$ of $Isom (DL (n, n))$ not contained in $\text{Isom}^+(\te…