Dionysios Syrigos

activity

20142023

most citedIrreducible laminations for IWIP Automorphisms of free products and Centralisers

2 citations · 2 across the 7 of their papers we have counts for

collaborators

8 papers

math.GR2023

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…

math.GR2023

Dynamics of iwip automorphisms of free products

Ioannis Papavasileiou, Dionysios Syrigos

Let $G$ be a free product and $Out (G)$ the outer automorphism group of $G$ . In this article using the theory of laminations we give a criterion for a subgroup $H$ of $\mat…

math.GR2021

On the action of relatively irreducible automorphisms on their train tracks

Stefano Francaviglia, Armando Martino, Dionysios Syrigos

Let $G$ be a group and let $G$ be a free factor system of $G$ , namely a free splitting of $G$ as $G = G_{1} * \dots * G_{k} * F_{r}$ . In this paper, we study the set of train track po…

math.GR2020

The mimimally displaced set of an irreducible automorphism of $F_{N}$ 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…

math.GR2019

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…

math.GR2016

Stabiliser of an Attractive Fixed Point of an IWIP Automorphism of a free product

Dionysios Syrigos

For a group $G$ of finite Kurosh rank and for some arbiratily free product decomposition of $G$ , $G = H_{1} * H_{2} * ... * H_{r} * F_{q}$ , where $F_{q}$ is a finitely generated…

math.GR2015

Asymmetry of Outer Space of a free product

Dionysios Syrigos

For every free product decomposition $G = G_{1} * ... * G_{q} * F_{r}$ of a group of finite Kurosh rank $G$ , where $F_{r}$ is a finitely generated free group, we can associat…

math.GR2014★ 2 cited

Irreducible laminations for IWIP Automorphisms of free products and Centralisers

Dionysios Syrigos

For every free product decomposition $G = G_{1} * ... * G_{q} * F_{r}$ , where $F_{r}$ is a finitely generated free group, of a group $G$ of finite Kurosh rank, we can associa…

Finite subgroups of automorphisms of free products

Dynamics of iwip automorphisms of free products

On the action of relatively irreducible automorphisms on their train tracks

The mimimally displaced set of an irreducible automorphism of FN​ is co-compact

The minimally displaced set of an irreducible automorphism is locally finite

Stabiliser of an Attractive Fixed Point of an IWIP Automorphism of a free product

Asymmetry of Outer Space of a free product

Irreducible laminations for IWIP Automorphisms of free products and Centralisers

The mimimally displaced set of an irreducible automorphism of $F_{N}$ is co-compact