• The automorphism group of a free-by-cyclic group in rank 2 

      Bogopolski, Oleg; Martino, Armando; Ventura Capell, Enric (2007-05)
      Article
      Accés obert
      Let ¡ be an automorphism of a free group F 2 of rank 2 and let M ¡ = F 2 o ¡ Z be the corresponding mapping torus of ¡ . We prove that the group Out ( M ¡ ) is usually virtually cyclic. More- over, ...