Terminal Geometry of Rank-Two Nielsen Reduction on Simplicial Trees

Yukun Du, Sa'ar Hersonsky

Let $X$ be a locally finite simplicial tree, and let $\Gamma =⟨{\gamma }_1,{\gamma }_2⟩\le \mathrm{Aut}(X)$ be a discrete subgroup generated by hyperbolic automorphisms acting without invers…