Currently I am a postdoctoral researcher at Technische Universität Berlin in the group of Financial and Actuarial Mathematics headed by Prof. Peter K. Friz . In particular, I am involved in the B04 project "Mean-field games, rough analysis and optimal trading" of the CRC/TRR 388 "Rough Analysis, Stochastic Dynamics and Related Fields " . Additionally, I am a junior member of the Financial Engineering and Mathematical Optimization Lab. I received my PhD from the National Techincal University of Athens (NTUA), under the supervision of Prof. Antonis Papapantoleon. Before that, I was a postgraduate student at Warwick University in the Master of Advanced Study (MASt) in Mathematical Sciences. Finally, I also completed an Applied Mahematical Sciences (MSc) program and did my undergraduate studies in the School of Applied Mathematical and Physical Sciences of NTUA.
Optimal control, stochastic analysis, applied probability, combinatorics, mathematical finance.
A. Saplaouras, S. Theodorakopoulos, Ito stochastic integration with respect to a G-Levy process, Preprint (2026).
P. K. Friz, I. Gasteratos, U. Horst, S. Theodorakopoulos, Mean-field games with rough common noise I: the linear-quadratic case, Preprint (2026) arxiv.org/abs/2602.19210.
A. Papapantoleon, A. Saplaouras, S. Theodorakopoulos, Stability of backward propagation of chaos, Preprint (2025) arxiv.org/abs/2506.03562.
A. Papapantoleon, A. Saplaouras, S. Theodorakopoulos, Existence, uniqueness and propagation of chaos for general McKean-Vlasov and mean-field BSDEs, Preprint (2024) arxiv.org/abs/2408.13758.
S. Theodorakopoulos, New proofs to measurable, predictable and optional section theorems, Statistics & Probability Letters, Volume 219, p. 110324, (2025).
S. Theodorakopoulos, Some sharp lower bounds for the bipartite Turán number of theta graphs, Bulletin of the Hellenic Mathematical Society, Volume 68, p. 1-9, (2024).
Part of the research team of the B04 project "Mean-field games, rough analysis and optimal trading" of the CRC/TRR 388 Rough Analysis, Stochastic Dynamics and Related Fields.
Principal Investigator of the H.F.R.I. project "Stochastic Analysis and Mathematical Finance in a model-free setting ". The project was supported by the 3rd Call for H.F.R.I. Scholarships for PhD candidates , Project id 05724.
Workshop on Path-dependent Optimal Control and Applications in Finance and Economics (2026), Humboldt Universität, Berlin, Germany.
19th Panhellenic Conference of Mathematical Analysis (2025), NTUA, Athens, Greece.
Workshop on New Challenges in Financial and Energy Markets: Math, Data & AI (2025), Athens Exchange Group, Athens, Greece.
21st Berlin-Oxford Young Researcher’s Meeting on Applied Stochastic Analysis (2025), Weierstrass Institute, Berlin, Germany.
Stochastic Methods in Finance and Physics (2023), FORTH, Heraklion, Greece.
Stochastic Analysis (2024/2025) (HU), Teaching Assistant.
Stochastic Processes (2023/2024) (SEMFE), Teaching Assistant.
Probability Theory and Statistics (2022/2023) (ECE), Teaching Assistant.
Probability Theory and Statistics (2021/2022) (ECE), Teaching Assistant.
Mathematical Finance (2020/2021) (SEMFE), Teaching Assistant.
Stochastic Differential Equations (2019/2020) (SEMFE), Teaching Assistant.
Topics on mean-field and McKean-Vlasov BSDEs, and the backward propagation of chaos, National Technical University of Athens
Orthogonalities in norm spaces, National Technical University of Athens.
Reed-Solomon codes and their basic extensions, National Technical University of Athens.