%0 Journal Article
%T Twisting out fully irreducible automorphisms
%A Matt Clay
%A Alexandra Pettet
%J Mathematics
%D 2009
%I arXiv
%X By a theorem of Thurston, in the subgroup of the mapping class group generated by Dehn twists around two curves that fill, every element not conjugate to a power of one of the twist is pseudo-Anosov. We prove an analogue of this theorem for the outer automorphism group of a free group.
%U http://arxiv.org/abs/0906.4050v2