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  SCIENTIFIC PROGRAMS AND ACTIVITIES | 
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| November 3, 2025 | 
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 Jerry Marsden, a pre-eminent applied mathematician, passed away September 21, 2010. He was the Carl F. Braun Professor of Engineering, Control and Dynamical Systems and Applied and Computational Mathematics, at the California Institute of Technology. His honors include: Fellow of the Royal Society, Fellow of the Royal Society of Canada, von Neumann Lecture and Prize (SIAM), Max Planck Research Award for Mathematics and Informatics, the Norbert Wiener Prize (AMS), and the Thomas K. Caughey Dynamics Award (ASME). In addition, he was the first director of the Fields Institute. "Remembering 
              Jerry Marsden", an obituary Overview of the Program
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                   Tuesday 
                (July 3)  | 
                 
                   Wednesday  
                (July 4)  | 
                 
                   Thursday  
                (July 5)  | 
                 
                   Friday  
                (July 6)  | 
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                   2:00-3:00 
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                   Organization Meeting with Participants 
                 | 
                 
                   Mathieu de Brun 
                Room 210  | 
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                   3:00-3:30 
                 | 
                 
                   Darryl Holm 
                Fermat's Principle and the Geometric Mechanics of Ray Optics  | 
                 
                   Coffee Break 
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                   Coffee Break 
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                   Coffee Break 
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                   3:30-4:00 
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                   Cristina Stoica 
                N-body Problem Bahen Centre: Room 1190  | 
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                   4:00-4:30 
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                   4:30-5:00 
                 | 
                 
                   Henry Jacobs 
                Room 210  | 
                 
                   Melvin Leok 
                  
                General Techniques for Constructing Variational Integrators Bahen Centre: Room 1190  | 
                 
                   Tomasz Tyranowski 
                  
                Adaptive Variational Integrator Room 210  | 
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                   5:00-5:30 
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                   Monday  
                (July 9)  | 
                 
                   Tuesday  
                (July 10)  | 
                 
                   Wednesday  
                (July 11)  | 
                 
                   Thursday  
                (July 12)  | 
                 
                   Friday  
                (July 13)  | 
              |
|  
                   11:00-12:00  
                 | 
                 
                   Martins Bruveris 
                Imperial College London Geometry of Image Registration: Diffeomorphism group and Momentum maps (Starts at 10:45am)  | 
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                   12:00-2:00  
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                   Lunch 
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                   Lunch 
                 | 
                 
                   Lunch 
                 | 
                 
                   Lunch 
                 | 
                 
                   Lunch 
                 | 
              
|  
                   2:00-3:00  
                 | 
                 
                   Alex Castro 
                Pontifícia Universidade Católica do Rio de Janeiro Summer School  | 
                 
                   Alex Castro 
                Pontifícia Universidade Católica do Rio de Janeiro Summer School  | 
                 
                   Henry Jacobs 
                California Institute of Technology Summer School  | 
                 
                   George Patrick  
                University of Saskachewan Variational integrators  | 
                 
                   Martins Bruveris 
                  
                Imperial College London Geometry of Image Registration: Diffeomorphism group and Momentum maps  | 
              
|  
                   3:00-3:30 
                 | 
                 
                   Tea Break 
                 | 
                 
                   Tea Break 
                 | 
                 
                   Tea Break 
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                   Tea Break 
                 | 
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|  
                   3:30-4:30  | 
                 
                   Ale Cabrera 
                Universidade Federal Rio de Janeiro Geometric phases in partially controlled mechanical systems  | 
                 
                   François Gay-Balmaz 
                Ecole Normale Superieure de Paris Dual pairs in fluid dynamics  | 
                 
                   Ale Cabrera 
                Universidade Federal Rio de Janeiro Geometric phases in partially controlled mechanical systems  | 
                 
                   Tea Break 
                 | 
              |
|  
                   4:30-5:30 
                 | 
                 
                   Marcel Oliver 
                Jacobs University Backward error analysis for symplectic RungeKutta Methods on Hilbert spaces  | 
                 
                   Dong Eui Chang 
                University of Waterloo Damping-Induced Self Recovery Phenomenon in Mechanical Systems with an Unactuated Cyclic Variable  | 
                 
                   Darryl D. Holm 
                Imperial College London Fields Institute Colloquium in Applied Mathematics Momentum Maps, Image Analysis & Solitons (Begins at 4:10pm, Room 230)  | 
                 
                   Felipe Arrate 
                Basque Center for Applied Mathematics Cardiac Electrophysiology Model on the moving heart  | 
              
In the third week of the program, participants of the symposia during the first two weeks will meet in informal collaborations, and there will be a summer school on Mechanics and Geometry in Canada (MAGIC).
|  
                   Monday  
                (July 16)  | 
                 
                   Tuesday  
                (July 17)  | 
                 
                   Wednesday  
                (July 18)  | 
                 
                   Thursday  
                (July 19)  | 
                 
                   Friday  
                (July 20)  | 
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|  
                   9:30-10:30 
                 | 
                Jedrzej 
                  Sniatycki University of Calgary Differential Geometry of Singular Spaces and Reduction of Symmetries  | 
                Jedrzej 
                  Sniatycki  University of Calgary Differential Geometry of Singular Spaces and Reduction of Symmetries  | 
                Jedrzej 
                  Sniatycki University of Calgary Differential Geometry of Singular Spaces and Reduction of Symmetries  | 
                Jedrzej 
                  Sniatycki University of Calgary Differential Geometry of Singular Spaces and Reduction of Symmetries  | 
                Tanya 
                  Schmah University of Toronto Reduction of systems with configuration space isotropy  | 
              
|  
                   10:30-11:00  
                 | 
                 
                   Coffee Break 
                 | 
                 
                   Coffee Break 
                 | 
                 
                   Coffee Break 
                 | 
                 
                   Coffee Break 
                 | 
                 
                   Coffee Break 
                 | 
              
|  
                   11:00-12:00  
                 | 
                Tudor Ratiu Ecole Polytechnique Fédérale de Lausanne The reduced variation principle for free-boundary continua  | 
                Klas Modin Chalmers University of Technology Higher dimensional generalisation of the $\mu$--Hunter--Saxton equation  | 
                David Martin de 
                  Diego Review talk about nonholonomic dynamics  | 
                J.C. Morrero University of La Laguna Hamilton-Jacobi equation and integrability  | 
                Anthony Bloch University of Michigan Continuous and Discrete Embedded Optimal Control Problems  | 
              
|  
                   12:00-2:00  
                 | 
                 
                   Lunch 
                 | 
                 
                   Lunch 
                 | 
                 
                   Lunch 
                 | 
                 
                   Lunch 
                 | 
                 
                   Lunch 
                 | 
              
|  
                   2:00-3:00  
                 | 
                Henrique 
                  Bursztyn IMPA, Rio de Janeiro An Introduction to Dirac Structures  | 
                Paula 
                  Balseiro Universidade Federal Fluminense Twisted brackets in nonholonomic mechanics  | 
                Edith 
                  Padrón Hamilton-Jacobi equations and nonholonomic dynamics  | 
                Dimitri 
                  Zenkov North Carolina State University The Hamel equations and applications to nonholonomic systems  | 
                Miguel 
                  Rodriguez-Olmos Technical University of Catalonia Hamiltonian bifurcations from stable branches of relative equilibria  | 
              
|  
                   3:00-3:30 
                 | 
                 
                   Tea Break 
                 | 
                 
                   Tea Break 
                 | 
                 
                   Tea Break 
                 | 
                 
                   Tea Break 
                 | 
                 
                   Tea Break 
                 | 
              
|  
                   3:30-5:30  
                 | 
                 
                   Leonardo Colombo 
                Instituto de Ciencias Matemáticas Higher-order Lagrange-Poincaré reduction for optimal control of underactuated mechanical systems  | 
                 
                   Lyudmyla Grygor'yeva, Juan-Pablo Ortega and Stanislav 
                      Zub 
 
 Reception  | 
                 
                   David Meier, Francois-Xavier Vialard, 
                    Martins Bruveris, Francois Gay-Balmaz and Chris Burnett 
                Mini-symposium on image registration  | 
                 
                   Richard Montgomery 
                  Jeffery LawsonUniversity of California, Santa Cruz Classical Few-body Progress Western Carolina University A heuristic approach to geometric phase Tomoki Ohsawa University of California, San Diego  | 
                 
                   Richard Montgomery 
                University of California, Santa Cruz Classical Few-body Progress Shane Ross Virginia Tech Lagrangian coherent structures  | 
              
| Gabriela 
                  Depetri Universidade Estadual de Campinas Geodesic chaos around black-holes with magnetic fields  | 
              |||||
| Miguel 
                  Vaquero Instituto de Ciencias Matemáticas Hamilton-Jacobi for Generalized Hamiltonian Systems  | 
                Eder 
                  Mateus Universidade Federal de Sergipe Spatial isosceles three body problem with rotating axis of symmetry Adriano Regis Universidade Federal Rural de Pernambuco Vortices on the triaxial ellipsoid: a movie show  | 
              ||||
| Brian 
                  Seguin McGill University A transport theorem for irregular evolving domains 5:30pm-6:00pm  | 
              
|  
                   Monday  
                (July 23)  | 
                 
                   Tuesday  
                (July 24)  | 
                 
                   Wednesday  
                (July 25)  | 
                 
                   Thursday  
                (July 26)  | 
                 
                   Friday  
                (July 27)  | 
              |
|  
                   9:00-10:10 
                 | 
                 
                   Wang Sang Koon  | 
                David Ebin Stony Brook University Reflections on the paper, "Groups of diffeomorphisms and the motion of an incompressible fluid"  | 
                Juan-Pablo Ortega Université de Franche-Comté/Centre National de la Recherche Scientifique Stochastic Hamiltonian Systems  | 
                 Anthony Bloch University of Michigan The geometry of integrable and gradient flows and dissipation (Audio of talk)  | 
                Hiroaki Yoshimura Waseda University Dirac Structures, Variational Principles and Reduction in Mechanics --- Toward Understanding Interconnection Structures in Physical Systems (Audio of talk)  | 
              
|  
                   10:10-10:40  
                 | 
                 
                   Coffee Break 
                 | 
                 
                   Coffee Break 
                 | 
                 
                   Coffee Break 
                 | 
                 
                   Coffee Break 
                 | 
              |
| 10:40- 11:50 | Henry Jacobs Caltech; Imperial College London Is swimming a limit cycle?  | 
                Mark Gotay University of British Columbia Momentum Maps and Classical Fields  | 
                Joris Vankerschaver University of California, San Diego Fluid-Structure Interactions: Geometric and Numerical Aspects  | 
                
                   Marco Castrillón López  | 
                Arthur Fischer UCSC The Legacy of Jerry Marsden's Early Career Work in Riemannian Geometry and General Relativity  | 
              
|  
                   11:50-2:00  
                 | 
                 
                   Lunch 
                 | 
                 
                   Lunch 
                 | 
                 
                   Lunch  
                 | 
                 
                   Lunch 
                 | 
                 
                   Lunch 
                 | 
              
|  
                   2:00-2:40 
                 | 
                Banavara Shashikanth New Mexico State University Vortex dynamics of classical fluids in higher dimensions  | 
                Dong Eui Chang University of Waterloo Control of mechanical systems  | 
                 
                   2:00-3:00  | 
                Antonio Hernández-Garduño UAM-I, Mexico Algebra and reduction of the three vortex problem (Audio of talk)  | 
                Elisa Guzmán Universidad de La Laguna Reduction of Lagrangian submanifolds and Tulczyjew's triple (Audio of talk)  | 
              
| 2:40-3:20 | George Patrick University of Saskatchewan Geometry and the analysis of geometric numerical algorithms  | 
                Jair Koiller Getulio Vargas Foundation A gentle introduction to Microswimming: geometry, physics, analysis  | 
                Scott Kelly University of North Carolina at Charlotte (Audio of talk)  | 
                Ari Stern University of California, San Diego Symplectic groupoids and discrete constrained Lagrangian mechanics  | 
              |
|  
                   3:20-3:50 
                 | 
                 
                   Tea Break 
                 | 
                 
                   Tea Break 
                 | 
                 
                   Tea Break 
                (3:00-3:30)  | 
                 
                   Tea Break 
                 | 
                 
                   End 
                 | 
              
|  
                   3:50-4:30  
                 | 
                Tom Mestdag Ghent University Anholonomic frames in nonholonomic mechanics  | 
                 
                   Melvin Leok 
                University of California, San Diego Discrete Hamiltonian Variational Integrators and Discrete Hamilton--Jacobi Theory  | 
                 
                   William F. Shadwick 
                Omega Analysis Limited From the Geometry of Extreme Value Distributions to 'Laws of Mechanics' in Financial Markets  | 
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| 4:30-5:10 | Daniel Offin Queen's University  | 
                Stephen 
                  Preston University of Colorado Geodesic equations on contactomorphism groups  | 
                Andrea 
                  Dziubek, Edmond Rusjan SUNY IT A Model for the Retina Including Blood Flow and Deformation  |