25 citations · 48 across the 12 of their papers we have counts for
4 papers · 1 filter
The Recognition Theorem for Out(F_n)
Mark Feighn, Michael Handel
Our goal is to find dynamic invariants that completely determine elements of the outer automorphism group $\Out(F_n)$ of the free group of rank . To avoid finite order phe…
Fixed Points of abelian actions
John Franks, Michael Handel, Kamlesh Parwani
We prove that if $\F$ is an abelian group of diffeomorphisms isotopic to the identity of a closed surface of genus at least two then there is a common fixed point for all…
Commensurations of Out(F_n)
Benson Farb, Michael Handel
Let $\Out(F_n)$ denote the outer automorphism group of the free group with . We prove that for any finite index subgroup $Γ<\Out(F_n)$, the group $\Aut(Γ)$ is isomorphic…
Axes in Outer Space
Michael Handel, Lee Mosher
We develop a notion of axis in the Culler--Vogtmann outer space X_r of a finite rank free group F_r, with respect to the action of a nongeometric, fully irreducible outer automorph…