Intervenant: Achraf Badahmane  (LMPA Joseph Liouville)
Date et lieu: vendredi 16 juin à 14h30 en salle B014.

Titre : Saddle point problems


Résumé:

Abstract: In some applications, we have to solve large linear saddle
point problems with multiple right-hand sides. Instead of applying a
standard iterative process to the solution of each saddle point
problem indepentely, it’s more efficient to apply a global process. We
use different techniques of preconditioning ( Diagonal preconditioner,
Triangular preconditioner, P0 preconditioner ,.. ) to improve spectral
proprieties of the saddle point matrix and to accelerate the
convergence .