Giulia Orrù

  • Meet the COGENT Doctoral Candidates!
    The COGENT 13 doctoral students are now well settled in their home institutions. The first Winter School, which took place in Galway from 1st to 12th December 2025, was a great opportunity for…
  • Training materials from the Galway Winter School
    The training materials from the COGENT Winter School are available on the Research & Training section of the COGENT website. More content, such as additional videos of lectures, will be added to…
  • COGENT Winter School, December 1-12 2025 - University of Galway, Ireland
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        The first COGENT Winter School will be held in December in Galway, Ireland. The COGENT Winter School consists of two weeks of on-site learning in Galway, Ireland, followed by an…
  • All COGENT positions have been filled
      The COGENT application process has ended. All 13 PhD positions within the COGENT network have now been filled.  The recruitment committee and all the COGENT researchers would like to…
  • Research goals
    The COGENT project aims to tackle a range of scientific challenges including: Obtaining full explicit information on the cohomology of several families of arithmetic groups. Circumventing the…
Giulia Orrù

Project: Constructing equivariant CW-complexes for arithmetic (and related) groups (DC2)

Supervisors: Graham Ellis, James Cruickshank

Location: University of Galway, Ireland

I am Giulia Orrù from Italy. I obtained my Bachelor’s degree in Mathematics from the University of Cagliari, completing my final year at the University of Granada through the Erasmus+ program. There, I developed a strong interest in Algebra and Geometry, which led me to pursue the ALGANT (Algebra, Geometry, and Number Theory) Master’s program at the Universities of Padova and Bordeaux, graduating in 2021. 

After my Master’s, I worked as a high school teacher of Mathematics and Physics and later as a frontend developer, but I realized I missed mathematics. I then received a scholarship at the University of Sassari, working with Iulia Martina Bulai and Tim Steger, which renewed my interest in the areas I had explored before. This led to my current PhD position at the University of Galway, under the supervision of Graham Ellis and James Cruickshank, where I study arithmetic groups and their cohomology via explicit computations using GAP.