I am a maître de conférences (HDR) in applied mathematics at Université Paris-Saclay
(Laboratoire de mathématiques d'Orsay) and a junior member of the Institut Universitaire de France.
I defended my HdR in March 2024; before that I was a post-doc with
Mathieu Lewin,
following a PhD (2016) under
Jean-David Benamou and
Guillaume Carlier.
I work at the intersection of optimal transport, mathematical physics,
mathematical economics and numerical optimization — from the rigorous asymptotic analysis of
entropic regularization to variational models arising in quantum chemistry and in the
estimation of risk.
I am the Principal Investigator of the ANR project GOTA, co-PI of the associate
team KarMa (ParMa–Kantorovich Initiative, PIMS), and a member of the Inria–Saclay
team ParMa. I co-organize the monthly Optimal Transport / PDE / Machine Learning seminar at Orsay.
Optimal Transport
Mathematical Physics
Mathematical Economics
Numerical Optimization
News
- 2027Co-organizing a workshop on Numerical Optimal Transport at the Newton Institute (Cambridge), within the semester programme on Optimal Transport.
- 2026Co-organizing a workshop at the Fondation des Treilles with M. Laborde and P. Pegon.
- 2026Awarded an Inria PiQ project, PiQuantO — Problems in Quantum Optimal Transport, with R. Lelotte.
Agenda
Semester on Optimal Transport — Isaac Newton Institute, CambridgeMar 2027
Organising a workshop on Optimal Transport — Fondation des TreillesSep 2026
Research visit — Brendan Pass, University of Alberta, EdmontonJun 2026
Experience
Maître de conférences — Université Paris-Saclay, Orsay · délégation at Inria-Paris (Matherials), 2023 & 2024Sep 2018 – present
Post-doc (CNRS) — PSL · Université Paris-Dauphine · supervisor: M. LewinSep 2017 – Aug 2018
A.T.E.R. — PSL · Université Paris-DauphineSep 2016 – Aug 2017
Education
HdR in Mathematics — Université Paris-Saclay2024
PhD in Applied Mathematics — PSL · Université Paris-Dauphine2016
MSc in Mathematical Engineering — Politecnico di Milano2013
Recent & upcoming talks
GdT Contrôle et Optimisation, INSA RouenOct 2026
Analysis Seminar, Nova University, LisbonApr 2026
SMAI–MODE, Université Côte d'AzurMar 2026
International Congress of Basic Science, Beijing · plenaryJul 2025
All talks & seminars →
Distinctions & funding
Distinctions
- Institut Universitaire de FranceJunior member · 2025–2030
- Frontiers of Science Award (ICBS)2024 — regularized transportation problems
- Young Researchers PrizeFondation Paris-Dauphine & Accuracy · 2017
Funding
- PiQ — PiQuantOQuantum OT · PI · awarded 2026 · 2026–2030 · 475 k€
- ANR GOTAPI · 2023–2027 · 253 k€
- KarMa (ParMa–Kantorovich Initiative, PIMS)Co-PI · 2024–
- RIPEC C32024–2027
- PGMO grants2022–2026
- H-code Paris-Saclay · PEPS CNRS · PEDR2020–2024
Selected publications
A sparse approximation of the Lieb functional with moment constraints
V. Ehrlacher, L. Nenna
SIAM Journal on Mathematical Analysis, 2026
Published
An ODE characterisation of multi-marginal optimal transport for pairwise costs
L. Nenna, B. Pass
IMA Journal of Numerical Analysis, 2025
Published
Iterative Bregman projections for regularized transportation problems
J.-D. Benamou, G. Carlier, M. Cuturi, L. Nenna, G. Peyré
SIAM Journal on Scientific Computing, 2015
Frontiers of Science Award 2024
Grand-Canonical Optimal Transport
S. Di Marino, M. Lewin, L. Nenna
Archive for Rational Mechanics and Analysis, 2025
Published
Recent preprints (2025–2026)
- Ehrlacher, Lelotte, Nenna — A land of monotone plenty, bis repetita: from classical to weak optimal transport · 2026
- Garatti, Nenna, Rota-Nodari, Tamanini — A PDE approach to the Benamou–Brenier formula for the Schrödinger problem · 2026
- Bonnet-Weill, Ehrlacher, Nenna — A reduced-order model for parametrized optimal transport problems · 2026
- Cancès, Nenna, Omarov, Pass — Ordinary differential equations for regularized variational problems involving semi-discrete optimal transport · 2026
- Cancès, Mérigot, Nenna — A particle method for a nonlinear multi-marginal optimal transport problem · 2026
- Nenna, Pegon, Tocquec — Convergence rates for regularized unbalanced optimal transport: the discrete case · 2025
- Nenna, Omarov, Pass — Characterizing and computing solutions to regularized semi-discrete OT via an ODE · 2025
- Casteras, Monsaingeon, Nenna — Large deviations for sticky-reflecting Brownian motion with boundary diffusion · 2025
All publications →
Teaching · 2025–2026
Optimisation et simulation numérique — M2 MSVUniversité Paris-Saclay
Service & responsibilities
Refereeing & reviewing
- JournalsJOTA · SIAM J. Math. Anal. · Math. of Oper. Res. · J. Global Optim. · SIAM J. Sci. Comput. · ESAIM: M2AN · M3AS · JFA
- Grant & panel reviewingDFG · Inria Quadrant (PiQ) · NSERC
- Seminar organisationCo-organiser, GdT Optimal Transport–PDE–ML (since 2021)
Committees & administration
- Frontiers of Science AwardsScientific computing section · 2025 & 2026
- MCF hiring committeeLMO, Université Paris-Saclay
- PhD juriesR. Coyaud (2020) · X. Bacon (2022)
- SMAI-MODE boardElected member · 2021–2024
- Erasmus co-coordinatorDept. of Mathematics, Université Paris-Saclay
