I am an associate professor at the University of Namur (department of Mathematics, naXys institute). I received the M.S. degree in aerospace engineering and the Ph.D. degree in applied mathematics from the University of Liège, Belgium, in 2007 and 2011, respectively. Prior to joining UNamur, I was a postdoctoral researcher at the University of California Santa Barbara from 2011 to 2013, at the University of Liège from 2013 to 2015, and at the University of Luxembourg in 2016.
My research lies at the intersection of dynamical systems theory, control theory, and operator theory (Koopman operator). It aims at developing new theoretical approaches and numerical tools that are needed for the global analysis of nonlinear systems and networks.
9/2025: I will be attending the 2nd workshop on "Koopman Operator Theory: Fundamentals, Approximations and Applications" in Cres (Croatia).
6/2025: Natsuki Katayama (Kyoto University, supervisor: Yoshihiko Susuki) is visiting for one month in the context of a FNRS-JSPS mobility project with Japan.
6/2025: a paper co-authored with Ramachandran Chittur Anatharaman on Koopman operator based network identification is accepted in Nonlinear Dynamics [arxiv]
5/2025: I will be attending the next SIAM Conference on Applications of Dynamical Systems in Denver. A mini-symposium on the Koopman operator in control will be co-organized with Cindy Yee (University of Colorado Colorado Springs)
3/2025: a paper co-authored with Rishikesh Yadav on Koopman operator approximation via Bernstein polynomials is accepted in Communications in Nonlinear Science and Numerical Simulation [arxiv]
3/2025: FG got a paper accepted at ECC25, on error bounds on analytic Koopman-based Lyapunov functions
1/2025: FG (François-Grégoire) got a paper accepted in Nonlinear Dynamics, on Koopman-based global stability analysis. Check out the associated Matlab toolbox KOSTA.
1/2025: João Böger (Technical University of Denmark) is visiting us for 2 months. He works on machine learning and transport systems. Welcome!
12/2024: A workshop on "Data-driven modelling, analysis, and control using the Koopman operator" is co-organized with P. Bevanda, S.Hirche, A. Lederer, and K. Worthmann at CDC2024. More info
10/2024: Christian has successfully defended his PhD thesis. Congratulations, Dr. Mugisho Zagabe! He also got a paper accepted in SIAM Journal on Control and Optimization. [PDF]
8/2024: Judicaël is presenting at MTNS 2024 our joint work with J. Winkin on Koopman operator based state estimation
7/2024: A paper co-authored wih Ramachandran Chittur Anantharaman is accepted at CDC2024
7/2024: I am visiting Yoshihiko Susuki at Kyoto University