On the null-controllability of diffusion equations

Tenenbaum, Gérald; Tucsnak, Marius

ESAIM: Control, Optimisation and Calculus of Variations, Volume 17 (2011) p. 1088-1100

How to get a conservative well-posed linear system out of thin air. Part I. Well-posedness and energy balance

Weiss, George; Tucsnak, Marius

ESAIM: Control, Optimisation and Calculus of Variations, Volume 9 (2003) p. 247-273