In the first part, we shall recall the definition of Hamiltonian systems defined with respect to a Dirac structure. Then we shall recall how these systems may be extended in order to describe open physical systems by including pairs of exte

6 juin 2016 41 min

Geometric integrators form a particular class of numerical schemes for evolutionary equations that are especially constructed in order to preserve the geometric properties of the equation they discretize such as energy conservation, and co

7 juin 2016 46 min