A presentation for Aut(Fn)
Heather Armstrong, Bradley Forrest, Karen Vogtmann
Abstract
We study the action of the group Aut(Fn) of automorphisms of a finitely generated free group on the degree 2 subcomplex of the spine of Auter space. Hatcher and Vogtmann showed that this subcomplex is simply connected, and we use the method described by K. S. Brown to deduce a new presentation of Aut(Fn).
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