Geodesic
A short proof of Handel and Mosher's alternative for subgroups of Out$(F_N)$
Camille Horbez1 orcid
1Université Paris-Sud, Orsay, France
Groups, geometry, and dynamics, Tome 10 (2016) no. 2, pp. 709-721

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DOI

We give a short proof of a theorem of Handel and Mosher [21] stating that any finitely generated subgroup of Out(FN​) either contains a fully irreducible automorphism, or virtually fixes the conjugacy class of a proper free factor of FN​, and we extend their result to non finitely generated subgroups of Out(FN​).
DOI : 10.4171/ggd/361
Classification : 20-XX
Mots-clés : Out(FN​), subgroup classification

Camille Horbez  1

1 Université Paris-Sud, Orsay, France 
Camille Horbez. A short proof of Handel and Mosher's alternative for subgroups of Out$(F_N)$. Groups, geometry, and dynamics, Tome 10 (2016) no. 2, pp. 709-721. doi: 10.4171/ggd/361
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     year = {2016},
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