I am a final-year PhD candidate at the Department of Mathematics of the Aristotle University of Thessaloniki, under the supervision of Chrysostomos Psaroudakis.
Research interests:
Representation theory of Artin algebras
Finitistic dimension conjecture
Auslander-Reiten theory
Quasi-hereditary algebras
A-infinity algebras and directed bocses
Derived categories
O. Giatagantzidis (2024). Radical preservation and the finitistic dimension, accepted for publication in Bulletin of the London Mathematical Society, 20 pages
K. Erdmann, O. Giatagantzidis, C. Psaroudakis, Ø. Solberg (2025). Monomial arrow removal and the finitistic dimension conjecture, arXiv preprint, submitted, 23 pages
O. Giatagantzidis (2025). Arrow reductions for the finitistic dimension conjecture, arXiv preprint, 51 pages
O. Giatagantzidis (2025). Biretractable ring monomorphisms and contravariant finiteness, in preparation
Junior Research Retreat: Representation Theory and Combinatorics, 9-14 September 2025, Bad Boll, Germany
Derived representation theory and triangulated categories (conference), 23-27 June 2025, Aristotle University of Thessaloniki, Greece
(Poster: Radical preservation and the finitistic dimension)
Bricks and endofinite representations (workshop), 3-5 March 2025, University of Bielefeld, Germany
(Contributed talk: Radical preservation and algebras of quasi-uniform Loewy length)
Large modules and endofiniteness (workshop), 24-28 February 2025, University of Stuttgart, Germany
(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 (conference), 23-27 September 2024, Charles University and Czech Academy of Sciences, Prague, Czech Republic
ARTIG 4 (conference), 14-15 June 2024, RWTH Aachen University, Germany
Research stay at the Institute of Algebra and Number Theory (IAZ), April-July 2024, University of Stuttgart, Germany
Homological algebra and representation theory (conference), 10-14 July 2023, University of the Aegean, Samos, Greece
Postmodern Ringel duality, bocses and contramodules (workshop), 3-6 April 2023, University of Stuttgart, Germany
Homological aspects of cyclic Nakayama algebras via minimal zero paths, 18 September 2025, University of Stuttgart, Germany
Arrow reductions, quasi-uniform Loewy length algebras and the finitistic dimension conjecture, 11 March 2025, University of Cologne, Germany
The generalized arrow removal operation and the arrow reduced version of an algebra, 25 June 2024, University of Stuttgart, Germany
The factor category of a Frobenius category (working group talk), 14 June 2024, University of Stuttgart, Germany
Radical-preserving homomorphisms and the finitistic dimension conjecture, 24 October 2023, University of Stuttgart, Germany
E-mail: odysgiat@math.auth.gr