5 papers · 1 filter
Finite subgroups of automorphisms of free products
Ioannis Papavasileiou, Dionysios Syrigos
We study finite subgroups of outer automorphisms of free products. We give upper bounds for the orders of these finite subgroups as well as bounds for the orders of individual tors…
Dynamics of iwip automorphisms of free products
Ioannis Papavasileiou, Dionysios Syrigos
Let be a free product and the outer automorphism group of . In this article using the theory of laminations we give a criterion for a subgroup of $\mat…
The mimimally displaced set of an irreducible automorphism of is co-compact
Stefano Francaviglia, Armando Martino, Dionysios Syrigos
We study the minimally displaced set of irreducible automorphisms of a free group. Our main result is the co-compactness of the minimally displaced set of an irreducible automorphi…
The minimally displaced set of an irreducible automorphism is locally finite
Stefano Francaviglia, Armando Martino, Dionysios Syrigos
We prove that the minimally displaced set of a relatively irreducible automorphism of a free splitting, situated in a deformation space, is uniformly locally finite. The minimally…
Stabiliser of an Attractive Fixed Point of an IWIP Automorphism of a free product
Dionysios Syrigos
For a group of finite Kurosh rank and for some arbiratily free product decomposition of , , where is a finitely generated…