Abstract. In this paper, we study the observability, the controllability and the boundary stabilizability of the linear elasticity systems. This work extends to non-isotropic systems with variable coefficients, the observability and exact controllability results for isotropic elastodynamic systems obtained by J.-L. Lions in 1988, the uniform stabilizability results for two-dimensional isotropic systems obtained by J. E. Lagnese in 1991 and the results obtained by Alabau and Komornik .
AMS Subject Classification
(1991): 35L55, 35Q72, 93B05, 93B07, 93C20, 93D15
stabilization by feedback,
partial differential equation,
Received March 24, 1997 and in revised form September 25, 1997. (Registered under 2650/2009.)