Odysseas Giatagantzidis

I am currently a visiting postdoctoral researcher at the Institute of Algebra and Number Theory (IAZ) at the University of Stuttgart. Previously, I obtained my PhD from the Aristotle University of Thessaloniki, supervised by Chrysostomos Psaroudakis. My research focuses on Representation Theory and Homological Algebra, and I defended my thesis, titled “Reduction Techniques for Homological Dimensions of Finite Dimensional Algebras,” in February 2026.

Research interests:

Published paper

O. Giatagantzidis. Radical preservation and the finitistic dimension, Bull. Lond. Math. Soc. 58 (2026), no. 1, paper no. e70222, 23 pages

K. Erdmann, O. Giatagantzidis, C. Psaroudakis, Ø. Solberg. Monomial arrow removal and the finitistic dimension conjecture, 23 pages, submitted
O. Giatagantzidis. Arrow reductions for the finitistic dimension conjecture, 56 pages, submitted
O. Giatagantzidis. Biretractable ring monomorphisms and contravariant finiteness, in preparation

Junior Research Retreat: Representation Theory and Combinatorics, University of Bonn | Bad Boll, Germany | 9 – 14 September 2025
Derived representation theory and triangulated categories, Aristotle University of Thessaloniki | Thessaloniki, Greece | 23 – 27 June 2025
Poster: Radical preservation and the finitistic dimension
Bricks and endofinite representations, University of Bielefeld | Bielefeld, Germany | 3 – 5 March 2025
Contributed talk: Radical preservation and algebras of quasi-uniform Loewy length

Large modules and endofiniteness, University of Stuttgart | Stuttgart, Germany | 24 – 28 February 2025
Contributed talk: Sylvester rank functions on module categories (part of mini-course On characters and additive functions by T. Conde)
Triangulated categories in algebra and geometry, Charles University and Czech Academy of Sciences | Prague, Czech Republic | 23 – 27 September 2024
ARTIG 4, RWTH Aachen University | Aachen, Germany | 14 – 15 June 2024
Research stay, Institute of Algebra and Number Theory (IAZ), University of Stuttgart | Stuttgart, Germany | April – July 2024
Homological algebra and representation theory, University of the Aegean | Samos, Greece | 10 – 14 July 2023
Postmodern Ringel duality, bocses and contramodules, University of Stuttgart | Stuttgart, Germany | 3 – 6 April 2023

Postdoctoral Research stay, Institute of Algebra and Number Theory (IAZ), University of Stuttgart | Stuttgart, Germany | since March 2026
Workshop and International Conference on Representations of Algebras (ICRA 2026), Fourier Institute, Grenoble Alpes University | Grenoble, France | 22 June – 3 July 2026

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