Improved EFX Approximation Guarantees under Ordinal-based Assumptions. - Evangelos Markakis; Christodoulos Santorinaios (AAMAS, 2023)

On the Pursuit of EFX for Chores: Non-existence and Approximations. - Vasilis Christoforidis; Christodoulos Santorinaios (IJCAI, 2024)

Online Budget-Feasible Mechanism Design with Predictions. - Georgios Amanatidis; Evangelos Markakis; Christodoulos Santorinaios; Guido Schäfer; Panagiotis Tsamopoulos; Artem Tsikiridis (SAGT, 2025)

A Descent-based method on the Duality Gap for solving zero-sum games. - Michail Fasoulakis; Evangelos Markakis; Giorgos Roussakis; Christodoulos Santorinaios (CoRR, 2025)