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The University of Southampton
Mathematical Sciences

Dr Dionysios Syrigos PhD

Research Fellow in Pure Mathematics

Dr Dionysios Syrigos's photo

Dionysios is a Research Fellow in Pure Mathematics for the School of Mathematical Sciences at the University of Southampton.


Sept 2018 - Aug 2021

Research  Fellow, University  of  Southampton,  UK

Supervised  by Dr  Armando  Martino,  funded  by  his  Leverhulme  trust  grant  for  the  project  with  title ”The  Lipschitz  metric  and  the  conjugacy  problem  for  automorphisms  of  free  groups”


Feb 2017 - Sept 2018

Academic  Fellow, University  of  the  Aegean,  Greece

Lecturer  of  the  modules  ”Topics  in  Geometry”  and  ”Topics  in  Mathematics”


Oct 2013 - June 16 

Teaching  Assistant, University  of  Southampton,  UK

Calculus  II,  2nd  Semester

Linear  Algebra  II,  2nd  Semester

Analysis,  3rd  Semester


May 2013 - July 2016 

University of Southampton, UK:

Ph.D. in Pure Mathematics Geometric Group Theory, PhD Thesis: Deformation Spaces and Irreducible Automorphisms of a Free Product

Supervisor: Dr Armando Martino

Examiners: Prof P. Kropholler (Internal) and Prof E.Ventura (External)


Oct 2010 - Feb 2013

University of Athens, Greece: M.Sc. in Pure Mathematics, Distinction, Grade: 9.2/10

Master Dissertation: Ascending HNN extensions of polycyclic groups are residually finite Supervisor: Professor Olympia Talelli Examiners: Prof. E. Raptis and Dr M. Sykiotis


Sept 2006 - June 2010

University of Athens, Greece: B.Sc. in Mathematics, Grade: 8.3/10

Research interests

Geometric  and  Combinatorial  Group  Theory:

Automorphisms  of  Free  Groups,  Automorphisms  of  Free  products  of  Groups,  Group  actions  on  Trees, Outer  Space  and  more  generally  Deformation  Spaces  of  groups  and  their Metric  properties.


Research Projects:

Lipschitz Metric and the Conjugacy problem for automorphisms of free groups

Research group

Pure Mathematics

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Dr Dionysios Syrigos
Building 54 Mathematical Sciences University of Southampton Highfield Southampton SO17 1BJ

Room Number: 54/7023/M42

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