Agenda
Vendredi 19 avril 2019
14h00 – 15h00, Amphi 5 du CPT
Refraction and Reflexion According to The Principle of General Covariance
Patrick IGLESIAS (Institut de Mathématiques de Marseille I2M)
I will show how the principle of general covariance, introduced by Souriau in smoothly uniform contexts, can be extended to singular situations where the metric is discontinuous along a hypersurface. I will show then how to recover the principle of refraction of geodesics, in particular, by determining the Underdetermined differential system thanks to symplectic scattering.