- Partial Differential Equations
- Regularity for PDEs
- Quantitative Multiscale Analysis and Homogenization
- Fluid Mechanics
- Boundary Layers
HAL link
Advisor: David Gérard-Varet

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The program is supported by a recognized research team, the AGM Research Center in Mathematics from the CNRS, which develops many collaborations with academic and industrial labs. If you are interested in applying for 2026-2027 or have questions about the program, do not hesitate to contact me. We are also offering a few excellence scholarships for second-year master students. The details for applying are here. Apply via Mon Master and Etudes en France.
Co-organizer of the conference
'CY Days in Nonlinear Analysis' taking place from May 19 to May 22, 2025 at the Maison Internationale de la Recherche of CY Cergy Paris Université
Invited speakers: Scott Armstrong (CNRS and Sorbonne Université), Tobias Barker (University of Bath), Daniel Boutros (University of Cambridge), Raphaël Côte (Université de Strasbourg), Paul Dario (Université Paris Est Créteil), Lucas Ertzbischoff (Université Paris Dauphine), Irfan Glogic (University of Vienna), Juhi Jang (University of South California), Hyunjun Kwon (ETH Zurich), Jonas Luhrmann (Texas A&M University), Angeliki Menegaki (Imperial College London), Shrish Parmeshwar (CY Cergy Paris Université), Bruno Premoselli (Université Libre de Bruxelles), Mouad Ramil (INRIA and Université de Rennes), Simona Rota-Nodari (Université Côte d'Azur), Tobias Schmid (École Polytechnique Fédérale de Lausanne), Leonardo Tolomeo (University of Edinburgh), Juncheng Wei (Chinese University of Hong-Kong), Yao Yao (National University of Singapore)
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Coming soon: The lecture notes of the four courses are being finalized.
Invited lecturers (4 or 5 hours lectures):
Tarek Elgindi (Duke University), Singularity formation in the Euler equations in finite and infinite time
Philip Isett (California Institute of Technology), A proof of Onsager's conjecture on energy dissipating Euler flows
Sameer Iyer (University of California, Davis), Recent Progress in Stationary Boundary Layers
Hao Jia (University of Minnesota), Linearized Navier Stokes equations at high Reynolds numbers: a unified approach to inviscid damping, vorticity depletion and enhanced dissipation
Invited speakers (1 or 2 hours talks): Isabelle Gallagher (ENS Paris), Zineb Hassainia (NYUAD), Nader Masmoudi (NYUAD), Jérémie Szeftel (Sorbonne Université)
- Master 2 student (2026), CY Cergy Paris Université.
- Ph.D. Student (2021-2025), CY Cergy Paris Université.
- Postdoctoral Researcher (2021-2024), CY Cergy Paris Université
- Postdoctoral Researcher (2021-2023), co-supervised with Tobias Barker, CY Cergy Paris Université
- Postdoctoral Researcher (2020), co-supervised with Franck Sueur, University of Bordeaux
- Postdoctoral Researcher (2019), University of Bordeaux
- Ph.D. Student (2016-2019), co-supervised with David Lannes, University of Bordeaux
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(with Charles Collot and Jin Tan)
Submitted (2025)
arXiv
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(with Wenjia Jing and Yong Lu)
Multiscale Modeling and Simulation, 23(3), 1145-1182
(2025)
arXiv, journal
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(with Jin Tan)
to appear in American Journal of Mathematics (2025)
arXiv
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(with Tobias Barker and Pedro Fernández-Dalgo)
Mathematische Annalen, 389, 1517-1543, (2024)
arXiv, journal
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(with Tobias Barker and Jin Tan)
Comm. Math. Phys., 405(25), (2024)
arXiv, journal
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(with Dallas Albritton and Tobias Barker)
J. Math. Fluid Mech., 25(49) (2023); special issue in the memory of Olga Ladyzhenskaya
arXiv, journal
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(with Tobias Barker)
Vietnam Journal of Mathematics (2023); special issue dedicated to Carlos Kenig's 70th birthday
arXiv, journal
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(with Dallas Albritton and Tobias Barker)
Journal of Functional Analysis, 284(1) (2023)
arXiv, journal
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(with Mitsuo Higaki and Jinping Zhuge)
Analysis & PDE, 17(1), 171-242 (2024)
arXiv, journal
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(with Richard Höfer and Franck Sueur)
Journal de l'École polytechnique -- Mathématiques, Tome 9, 327-380 (2022)
arXiv, journal
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(with Tobias Barker)
J. Math. Fluid Mech., 23(66) (2021)
arXiv, journal
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(with Edoardo Bocchi and Francesco Fanelli)
Annales de l'Institut Henri Poincaré C, Analyse Non Linéaire, 39(3), 647-704 (2022)
arXiv, journal
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(with Tobias Barker)
Comm. Math. Phys., 385(2), 717-792 (2021)
arXiv, journal
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(with Mitsuo Higaki)
Calc. Var. Partial Differential Equations, 59, 131 (2020)
arXiv, journal
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(with Tobias Barker)
Arch. Ration. Mech. Anal., 235(2), 881-926 (2020)
arXiv, journal
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(with Tobias Barker)
Arch. Ration. Mech. Anal., 236, 1487-1541 (2020)
arXiv, journal
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(with Yasunori Maekawa and Hideyuki Miura)
J. Math. Fluid Mech., 21(4), 46 (2019)
arXiv, journal
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(with Yasunori Maekawa and Hideyuki Miura)
Comm. Math. Phys., 367(2), 517-580 (2019)
arXiv, journal
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(with Yasunori Maekawa and Hideyuki Miura)
Analysis & PDE, 13(4), 945-1010 (2020)
arXiv, journal
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(with Scott Armstrong, Tuomo Kuusi and Jean-Christophe Mourrat)
Arch. Ration. Mech. Anal., 226(2), 695-741 (2017)
arXiv, journal
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(with Carlos Kenig)
J. Math. Pures Appl., 113, 1-36 (2018)
arXiv, journal
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(with Carlos Kenig)
Arch. Ration. Mech. Anal., 216(3), 703-765 (2015)
arXiv, journal
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(with Didier Bresch)
SIAM J. Math. Anal., 46(2), 1116-1159 (2014)
HAL, journal
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(with Anne-Laure Dalibard)
Analysis & PDE, 7-6, 1253--1315 (2014)
arXiv, journal
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SIAM J. Math. Anal., 45(1), 345-387 (2013)
arXiv, journal
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Asymptotic Analysis, 83(3), 207-235 (2013)
arXiv, journal
Collaborators:
Dallas Albritton,
Scott Armstrong,
Tobias Barker,
Edoardo Bocchi,
Didier Bresch,
Charles Collot,
Anne-Laure Dalibard,
Francesco Fanelli,
Pedro Fernández-Dalgo,
Mitsuo Higaki,
Richard Höfer,
Wenjia Jing,
Carlos Kenig,
Tuomo Kuusi,
Yong Lu,
Yasunori Maekawa,
Hideyuki Miura,
Jean-Christophe Mourrat,
Franck Sueur,
Jin Tan,
Jinping Zhuge
- Indian Institute of Technology Bombay. School `Quantitative Theory of Homogenization'. Hybrid; in English. February 2025
lecture 1A, lecture 1B, lecture 2A, lecture 2B, lecture 3A, lecture 3B
- The Hong Kong Polytechnic University, China. Analysis seminar. Online; in English. December 2023
- The Hong Kong Polytechnic University, China. Analysis seminar. Online; in English. December 2023
- Long Time Behavior and Singularity Formation in PDEs-Part V, SITE, NYU Abu Dhabi. Online; in English. June 2022
- Homogenization Theory: Periodic and Beyond, Oberwolfach, Germany. Online; in English. March 2021
- Asymptotics, Operators, and Functionals, University of Bath, UK. Online; in English. November 2020
- Asymptotics, Operators, and Functionals, University of Bath, UK. Online; in English. October 2020
- Hydrodynamics Seminar, Fields Institute, Canada. Online; in English. October 2020
- Homogenisation in Disordered Media, Durham, UK. In English. August 2018
- Kyoto University (Kyoto Top Global University Special Lectures), Japan. In English. December 2017
Lecture 1 and Lecture 2 on December 11, 2017: "Compactness methods in homogenization''
Lecture 3 and Lecture 4 on December 11, 2017: "Partial regularity for Navier-Stokes''
- Collège de France, PDE Seminar. In French. January 2017
- BIRS, Banff, Canada. In English. July 2015
Teaching at CY Cergy Paris Université (2023-2026):
- Statistics (Spring 2024, Spring 2025, Winter 2026), Master 1. Lectures and tutorials.
- Distributions and Partial Differential Equations (Fall 2025), Master 2. Lectures.
- Refresher course in Analysis and Probability (Fall 2024), Master 2. Lectures.
- Topology and Functional Analysis (Fall 2024), Master 1. Lectures and tutorials.
- Advanced differential calculus and differential geometry (Spring 2024), Master 1. Lectures and tutorials.
- Linear optimization (Spring 2024), third-year undergraduate. Lectures.
- Probability (Spring 2024), first-year undergraduate. Lectures and tutorials.
- Refresher course in Analysis and Probability (Fall 2023), Master 2. Lectures.
Teaching at École polytechnique (2022-2026):
Graduate course (Spring 2018, Spring 2019, Spring 2020, Spring 2021
online, Spring 2022, Spring 2023) in the
Master's program of Cergy Paris Université:
Regularity for Partial Differential Equations: elliptic equations, homogenization and fluid mechanics
- Lecture 1: Caccioppoli's inequality and applications
- Lecture 2: Improved regularity in periodic homogenization and Liouville theorems
- Lecture 3: Harnack's inequality and Moser's proof of the De Giorgi-Nash-Moser theorem
- Lecture 4: De Giorgi's proof of the De Giorgi-Nash-Moser theorem
- Lecture 5: Calderón-Zygmund decomposition, BMO and John-Nirenberg's inequality
- Lecture 6: Epsilon regularity for the Navier-Stokes equations
With
Baoping Liu I gave a series of
introductory classes to PDEs at the
REU 2015 of the Department of Mathematics at The University of Chicago.
Here is a list of the classes I taught at The University of Chicago (2013-2015):
- Math 27300, Basic Theory of Ordinary Differential Equations (Winter 2015)
- Math 20000, Mathematical Methods for Physical Science 1 (Fall 2014)
- Math 20400, Analysis 2 (Fall 2014)
- Math 20100, Mathematical Methods for Physical Science 2 (Winter 2014)
- Math 20500, Analysis 3 (Winter 2014)
- Math 20000, Mathematical Methods for Physical Science 1 (Fall 2013)
- Math 20400, Analysis 2 (Fall 2013)
Some remarkable movies on fluid mechanics can be found here and there. Follow this link for the exceptional gallery of fluid motion of the American Physical Society.