. [. Alabau-boussouira, A Two-Level Energy Method for Indirect Boundary Observability and Controllability of Weakly Coupled Hyperbolic Systems, SIAM Journal on Control and Optimization, vol.42, issue.3, pp.871-906, 2003.
DOI : 10.1137/S0363012902402608

. [. Alabau-boussouira, Controllability of cascade coupled systems of multi-dimensional evolution pde's by a reduced number of controls. preprint, 2012.

M. [. Alabau-boussouira and . Léautaud, Indirect controllability of locally coupled systems under geometric conditions, Comptes Rendus Mathematique, vol.349, issue.7-8, pp.395-400, 2011.
DOI : 10.1016/j.crma.2011.02.004

URL : https://hal.archives-ouvertes.fr/hal-00617910

M. [. Alabau-boussouira and . Léautaud, Indirect controllability of locally coupled wave-type systems and applications, Journal de Math??matiques Pures et Appliqu??es, vol.99, issue.5, 2012.
DOI : 10.1016/j.matpur.2012.09.012

URL : https://hal.archives-ouvertes.fr/hal-00636605

]. F. Akbgbdt11, A. Ammar-khodja, M. Benabdallah, L. González-burgos, and . De-teresa, Recent results on the controllability of linear coupled parabolic problems: a survey, Math. Control Relat. Fields, vol.1, issue.3, pp.267-306, 2011.

A. [. Aronszajn, J. Krzywicki, and . Szarski, A unique continuation theorem for exterior differential forms on Riemannian manifolds, Arkiv f??r Matematik, vol.4, issue.5, pp.417-453, 1962.
DOI : 10.1007/BF02591624

]. N. Aro57 and . Aronszajn, A unique continuation theorem for solutions of elliptic partial differential equations or inequalities of second order, J. Math. Pures Appl, vol.36, issue.9, pp.235-249, 1957.

P. [. Burq and . Gérard, Condition n??cessaire et suffisante pour la contr??labilit?? exacte des ondes, Comptes Rendus de l'Acad??mie des Sciences - Series I - Mathematics, vol.325, issue.7, pp.749-752, 1997.
DOI : 10.1016/S0764-4442(97)80053-5

P. [. Burq and . Gérard, Contrôle optimal deséquationsdeséquations aux dérivées partielles, 2002.

G. [. Burq and . Lebeau, Mesures de d??faut de compacit??, application au syst??me de Lam??, Annales Scientifiques de l?????cole Normale Sup??rieure, vol.34, issue.6, pp.817-870, 2001.
DOI : 10.1016/S0012-9593(01)01078-3

G. [. Bardos, J. Lebeau, and . Rauch, Sharp Sufficient Conditions for the Observation, Control, and Stabilization of Waves from the Boundary, SIAM Journal on Control and Optimization, vol.30, issue.5, pp.1024-1065, 1992.
DOI : 10.1137/0330055

]. N. Bur97a and . Burq, Contrôlabilité exacte des ondes dans des ouverts peu réguliers, Asymptot. Anal, vol.14, issue.2, pp.157-191, 1997.

]. N. Bur97b and . Burq, Mesures semi-classiques et mesures de défaut, Exp. No. 826, pp.167-19597, 1996.

A. [. Chazarain and . Piriou, Introduction to the Theory of Linear Partial Differential Equations, 1982.

]. R. Dág06 and . Dáger, Insensitizing controls for the 1-D wave equation, SIAM J. Control Optim, vol.45, issue.5, pp.1758-1768, 2006.

]. N. Den82 and . Dencker, On the propagation of polarization sets for systems of real principal type, J. Funct. Anal, vol.46, issue.3, pp.351-372, 1982.

B. Dehman and G. Lebeau, Analysis of the HUM Control Operator and Exact Controllability for Semilinear Waves in Uniform Time, SIAM Journal on Control and Optimization, vol.48, issue.2, pp.521-550, 2009.
DOI : 10.1137/070712067

D. [. Dolecki and . Russell, A General Theory of Observation and Control, SIAM Journal on Control and Optimization, vol.15, issue.2, pp.185-220, 1977.
DOI : 10.1137/0315015

]. P. Gér91 and . Gérard, Microlocal defect measures, Comm. Partial Differential Equations, vol.16, issue.11, pp.1761-1794, 1991.

]. L. Hör85 and . Hörmander, The Analysis of Linear Partial Differential Operators, volume III, 1985.

]. L. Hör90 and . Hörmander, The Analysis of Linear Partial Differential Operators, volume I, 1990.

]. L. Hör94 and . Hörmander, The analysis of linear partial differential operators. IV, volume 275 of Grundlehren der Mathematischen Wissenschaften Fourier integral operators, 1994.

]. M. Léa10 and . Léautaud, Spectral inequalities for non-selfadjoint elliptic operators and application to the null-controllability of parabolic systems, J. Funct. Anal, vol.258, pp.2739-2778, 2010.

]. G. Leb96, . Lebeauler10-]-n, and . Lerner, ´ Equation des ondes amorties Metrics on the phase space and non-selfadjoint pseudo-differential operators, Algebraic and geometric methods in mathematical physics (Kaciveli, pp.73-109, 1993.

]. Lio88 and . Lions, Contrôlabilité exacte, perturbations et stabilisation de systèmes distribués, of Recherches en Mathématiques Appliquées, 1988.

]. Lio90 and . Lions, Quelques notions dans l'analyse et le contrôle de systèmessystèmes`systèmesà données in-compì etes, Proceedings of the XIth Congress on Differential Equations and Applications/First Congress on Applied Mathematics (Spanish), pp.43-54, 1989.

[. Rousseau and G. Lebeau, On Carleman estimates for elliptic and parabolic operators. Applications to unique continuation and control of parabolic equations, ESAIM: Control, Optimisation and Calculus of Variations, vol.18, issue.3, 2011.
DOI : 10.1051/cocv/2011168

URL : https://hal.archives-ouvertes.fr/hal-00351736

M. [. Lebeau and . Nodet, Experimental Study of the HUM Control Operator for Linear Waves, Experimental Mathematics, vol.19, issue.1, pp.93-120, 2010.
DOI : 10.1080/10586458.2010.10129063

URL : https://hal.archives-ouvertes.fr/inria-00418712

E. [. Lebeau and . Zuazua, Decay Rates for the Three-Dimensional Linear System of Thermoelasticity, Archive for Rational Mechanics and Analysis, vol.148, issue.3, pp.179-231, 1999.
DOI : 10.1007/s002050050160

]. A. Paz83 and . Pazy, Semigroups of Linear Operators and Applications to Partial Differential Equations, 1983.

]. L. Rdt11, L. Rosier, and . De-teresa, Exact controllability of a cascade system of conservative equations, C. R. Math. Acad. Sci. Paris, vol.349, pp.5-6291, 2011.

M. [. Rauch and . Taylor, Exponential Decay of Solutions to Hyperbolic Equations in Bounded Domains, Indiana University Mathematics Journal, vol.24, issue.1, pp.79-86, 1974.
DOI : 10.1512/iumj.1975.24.24004

]. R. See67 and . Seeley, Complex powers of an elliptic operator, Singular Integrals (Proc. Sympos

]. M. Shu01 and . Shubin, Pseudodifferential Operators and Spectral Theory, 2001.

]. L. Tar90 and . Tartar, H-measures, a new approach for studying homogenisation, oscillations and concentration effects in partial differential equations, Proc. Roy. Soc. Edinburgh Sect. A, pp.3-4193, 1990.

]. M. Tay81 and . Taylor, Pseudodifferential Operators, 1981.

L. Tebou, Locally distributed desensitizing controls for the wave equation, Comptes Rendus Mathematique, vol.346, issue.7-8
DOI : 10.1016/j.crma.2008.02.019

]. C. Zui83 and . Zuily, Uniqueness and nonuniqueness in the Cauchy problem, Progress in Mathematics Birkhäuser Boston Inc, vol.33, 1983.