I am currently a junior researcher (RTDa) in Mathematical Physics at the Department of Mathematics “Guido Castelnuovo” of Sapienza University of Rome, where I am a member of the ERC project KiLiM, led by Sergio Simonella.

From September 2023 to February 2026, I was a postdoctoral researcher in Zurich, first affiliated with the Institute of Mathematics of the University of Zurich and later with the Department of Mathematics of ETH Zurich. During this period, I worked under the supervision of Mikaela Iacobelli and Klaus Widmayer.

I obtained my PhD in Mathematics from the Department of Mathematics “Guido Castelnuovo” in May 2023. My PhD advisors were Dario Benedetto and Emanuele Caglioti.

My research interests lie in mathematical kinetic theory, with a particular focus on the rigorous derivation of kinetic and hydrodynamic equations, the asymptotic or long-time behavior of Vlasov-type equations, and the statistical properties of interacting particle systems in kinetic scaling regimes. From a mathematical perspective, my work combines techniques from partial differential equations, optimal transport, statistical mechanics, and probability theory.

My CV is available here. You can reach me at stefano.rossi2@uniroma1.it.

Preprints and Publications

1. M. Duerinckx, B. Geshkovski, S. Rossi, Kinetic theory for Transformers and the lost-in-the-middle phenomenon, (2026).
2. A. Gagnebin, M. Iacobelli, A. Rege, S. Rossi, From relativistic Vlasov-Maxwell to electron-MHD in the quasineutral regime, (2025).
3. T. Paul, S. Rossi, E. Trélat, Infinite-wise interactions: mean-field and graph limits for multiple-wise distinguishable agent systems, (2025).
4. M. Iacobelli, S. Rossi, K. Widmayer, On the stability of vacuum in the screened Vlasov-Poisson equation, Journal of the London Mathematical Society, Vol. 113, No. 1, (2026).
5. D. Benedetto, E. Caglioti, A. Gagnebin, M. Iacobelli, S. Rossi, Scattering problem for Vlasov-type equations on the d-dimensional torus with Gevrey data, Annales de l’Institut Henri Poincaré C Analyse Non Linéaire, Vol. 43, No. 4, 835-881, (2026).
6. M. Menci, T. Paul, S. Rossi, Propagation of chaos for topological models without regularity. In Modeling, Analysis, and Control of Multi-Agent Systems Across Scales, EMS Series of Congress Reports, EMS Press, 37-54, (2026).
7. M. Menci, T. Paul, S. Rossi, T. Tenna, Numerical modeling of flocking dynamics with topological interactions, Communications in Computational Physics, Vol. 39, No. 1, 240-260, (2025).
8. D. Benedetto, T. Paul, S. Rossi, Propagation of chaos and hydrodynamic description for topological models, Kinetic and Related models, Vol. 18, No. 1, 19-34, (2025).
9. P. Degond, M. Pulvirenti, S. Rossi, Propagation of chaos for topological interactions by a coupling technique, Rendiconti Lincei. Matematica e applicazioni, Vol. 34, No. 3, 641–655, (2023).
10. D. Benedetto, E. Caglioti, S. Rossi, Comparison between the Cauchy problem and the scattering problem for the Landau damping in the Vlasov HMF equation, Asymptotic Analysis, Vol. 129, No. 2, 215–238, (2022).
11. D. Benedetto, E. Caglioti, S. Rossi, Mean-field limit for particle-systems with topological interactions, Mathematics and Mechanics of Complex Systems, Vol. 9, No. 4, 423–440, (2021).