On the automorphism group of generalized Baumslag–Solitar groups
نویسندگان
چکیده
منابع مشابه
On the Automorphism Group of Generalized Baumslag-solitar Groups
A generalized Baumslag-Solitar group (GBS group) is a finitely generated group G which acts on a tree with all edge and vertex stabilizers infinite cyclic. We show that Out(G) either contains non-abelian free groups or is virtually nilpotent of class ≤ 2. It has torsion only at finitely many primes. One may decide algorithmically whether Out(G) is virtually nilpotent or not. If it is, one may d...
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ژورنال
عنوان ژورنال: Geometry & Topology
سال: 2007
ISSN: 1364-0380,1465-3060
DOI: 10.2140/gt.2007.11.473