TY  - JOUR
AU  - Duyckaerts, Thomas
AU  - Zhang, Xu
AU  - Zuazua, Enrique
TI  - On the optimality of the observability inequalities for parabolic and hyperbolic systems with potentials
JO  - Annales de l'I.H.P. Analyse non linéaire
PY  - 2008
SP  - 1
EP  - 41
VL  - 25
IS  - 1
PB  - Elsevier
UR  - http://www.numdam.org/articles/10.1016/j.anihpc.2006.07.005/
DO  - 10.1016/j.anihpc.2006.07.005
LA  - en
ID  - AIHPC_2008__25_1_1_0
ER  -