


From oscillations to integrable systems and Symplectic Geometry



Description: 
Oscillations can be observed in many natural physical and biological phenomena. The pendulum can be used as an introduction to several mathematical concepts. Actually Jacobi created the theory of elliptic functions to solve the motion of the pendulum. His work can be revisited using symplectic geometry and Birkhoff normal form. This can be extended to the free Rigid Body motion. These are examples of integrable Hamiltonian Systems to which are associated Elliptic Fibrations in the sense of Kodaira. An interesting issue both for Symplectic Geometry and Elliptic Fibrations is to study singular fibers. We finish with some new results on the semiglobal symplectic invariants related with these singularities.

Start Date: 
20180502 
Start Time: 
15:00 
Speaker: 
JeanPierre Françoise (Sorbonne Univ., Paris, France)

Institution: 
Sorbonne Université (CNRS, Lab. JacquesLouis Lions), Paris, France

Place: 
Sala 2.4, DMat UC

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