On the exact controllability of a system of mixed order with essential spectrum

Farid Ammar-Khodja; Giuseppe Geymonat; Arnaud Münch

Comptes Rendus. Mathématique, Volume 346 (2008) p. 629-634

Controllability for a class of reaction–diffusion systems: the generalized Kalman's condition

Farid Ammar-Khodja; Assia Benabdallah; Cédric Dupaix; Manuel González-Burgos

Comptes Rendus. Mathématique, Volume 345 (2007) p. 543-548