Aller au contenu  Aller au menu  Aller à la recherche

Bienvenue - Laboratoire Jacques-Louis Lions

Print this page |
5 postes ATER en mathématiques à Sorbonne Université
date limite le 5 avril à 16h
Détails ici


Chiffres clefs

189 personnes travaillent au LJLL

90 permanents

82 chercheurs et enseignants-chercheurs permanents

8 ingénieurs, techniciens et personnels administratifs

99 personnels non permanents

73 doctorants

14 post-doc et ATER

12 émérites et collaborateurs bénévoles


Chiffres mars 2019



Lundi 12 juin 2017

Hoai-Minh Nguyen (EPFL, Lausanne)

On the discreteness of the interior transmission eigenvalues for acoustic waves

Abstract : Interior transmission eigenvalues for acoustic waves is an eigenvalue problem involving two scalar elliptic equations of two unknowns which have the same Neumann and Dirichlet boundary conditions. One of its interests comes from the connection with the density of the range of the far field operator in the scattering problem. The interior transmission eigenvalue problem is known to be not self-adjoint. More severely, a priori estimates are non-standard and do not hold in general in this context. In this talk, I will review know results on the discreteness of transmissions eigenvalues and discuss new ones (joint work with Q. H Nguyen).