NAJan 21, 2011
Unconditionnally stable scheme for Riccati equationFrançois Dubois, Abdelkader Saïdi
We present a numerical scheme for the resolution of matrix Riccati equation used in control problems. The scheme is unconditionnally stable and the solution is definite positive at each time step of the resolution. We prove the convergence in the scalar case and present several numerical experiments for classical test cases.
NAMay 8, 2011
Homographic scheme for Riccati equationFrançois Dubois, Abdelkader Saïdi
In this paper we present a numerical scheme for the resolution of matrix Riccati equation, usualy used in control problems. The scheme is unconditionnaly stable and the solution is definite positive at each time step of the resolution. We prove the convergence in the scalar case and present several numerical experiments for classical test cases.
OCMay 24, 2011
Theorical and Numerical Analysis of the Rapid Pointwise Stabilization of Coupled String-Beam SystemsAlia Barhoumi, Abdelkader Saïdi
We consider a pointwise stabilization problem for a coupled wave and plate equations. We prove under rather general assumptions, that such systems can stabilized so as to have arbitrarily high decay rates and are exactly controllable. We propose a numerical approximation of the model and we study numerically the construction of the feedbak law leading to exponential decay with arbtrarily large rate.