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LYSM Workshop on Hamiltonian Dynamical Systems and Celestial Mechanics January 2026
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Europe/Paris
Conference Room of INdAM (Instituto Nazionale di Alta Matematica)
Conference Room of INdAM
Instituto Nazionale di Alta Matematica
Piazzale Aldo Moro 5, Roma
Description
Hamiltonian systems are ubiquitous in dynamics, both in finite or infinite dimension (i.e. stemming from ODEs or PDEs) and the techniques for their investigation stands at the crossroad of many approaches: perturbation theory, symplectic geometry, critical point theory,… just to mention a few. In particular, the study of evolution equations related to celestial mechanics is quite hard to handle and often requires specific involved computations that can be formal, analytic or/and numerical. The interplay of different techniques then becomes crucial.
The purpose of this workshop is to bring together researchers who are working on these topics from different perspectives and focus on the themes listed below.
* KAM-stability, i.e. stability over infinite times.
* Nekhoroshev stability, i.e. long-time stability and its counterpart with instabilities due to diffusion phenomena. Application in celestial mechanics
* More generally: new symplectic and variational techniques in celestial mechanics.
Speakers:
Alain Albouy (LTE-Observatoire de Paris)
Dario Bambusi (Univ. degli Studi di Milano)
Alessandra Celletti (Univ. Tor Vergata, Roma)
Luigi Chierchia (Univ. Roma Tre)
Mar Giralt (UPC Barcelona & Obs de Paris)
Giovanni Gronchi (Universita di Pisa)
Raphael Krikorian (Ecole Polytechnique)
Beatrice Langella (SISSA-Trieste)
Jacques Laskar (LTE-Observatoire de Paris)
Ugo Locatelli (Univ. Tor Vergata, Roma)
Jaime Paradela (University of Maryland)
Gabriella Pinzari (Univ. degli Studi di Padova)
Michela Procesi (Univ. Roma Tre)
Alexandre Prieur (LTE-Observatoire de Paris)
Tere M. Seara (UPC, Barcelona)
Chengyang Shao (IHES, Univ. Paris Saclay)
Alfonso Sorrentino (Univ. Tor Vergata, Roma)
Andrea Venturelli (Université d'Avignon)
Scientific committee:
Luca Biasco (Univ. Roma Tre)
Jessica Massetti (Univ. Tor Vergata, Roma)
Philippe Robutel (LTE-Observatoire de Paris)
Organizer: Laurent Niederman (LYSM)
Organization:
The workshop will start on Wednesday 21, in the morning and end on Friday 23 at 16h.
Each talk lasts 45 minutes + 5 minutes of questions.
On Thursday evening, you are all invited to the social dinner that will take place at the Osteria del Grillo at 8 p.m., close to the Pantheon
https://www.osteriadelgrillo.com/
IMPORTANT: The registration is free, but compulsory, considering the limited number of seats in the conference room
Sponsors:
Università Tor Vergata
Università Roma Tre
Inscription
workshop
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