A. Benabdallah et M. Lenczner, ESTIMATION OF THE DECAY-RATE FOR THE SOLU TION OF STABILIZATION EQUATIONS - APPLICATION TO THE STABILIZATION OF THE WAVE-EQUATION, Modelisation mathematique et analyse numerique, 30(5), 1996, pp. 607-635
This paper is devoted to the estimate of the exponential decay rate of
some evolution problems. Three different methods are proposed. Applic
ation to optimal control of the wave equation with internal or boundar
y control are given. in addition, estimates of the norm of the the Ric
catti operator and of its inverse are given. It is shown that they are
linked to the estimate of the exponential decay rate.