On the automorphisms of a graph product of abelian groups

  • Mauricio Gutierrez Adam Piggott Kim Ruane
  • Published 2007
We study the automorphisms of a graph product of finitely-generated abelian groups W . More precisely, we study a natural subgroup Aut∗W of AutW , with Aut∗W = AutW whenever vertex groups are finite and in a number of other cases. We prove a number of structure results, including a semi-direct product decomposition Aut∗W = (InnW oOut W )oAut W . We also… CONTINUE READING