most recent 30 from http://mathoverflow.net 2013-05-19T14:45:50Z http://mathoverflow.net/feeds/user/5403 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/5635/does-autaut-autg-stabilize/21528#21528 Fernando 2010-04-16T02:21:46Z 2010-04-16T02:21:46Z

<p>"if G is a non-abelian simple group, then Aut(Aut(G))=Aut(G)."</p> <p>This is Theorem 7.14 (Page 162) of </p> <p>Rotman, Joseph J. (1995), An introduction to the theory of groups, Berlin, New York: Springer-Verlag, ISBN 978-0-387-94285-8<br> © 1995 Springer-Verlag New York, Inc. ISBN 0-387-94285-8 Springer-Verlag New York Berlin Heidelberg ISBN 3-540-94285-8 Springer-Verlag Berlin Heidelberg New York</p> <p>All the best,</p> <p>Fernando.</p>