The quadratic control for linear discrete-time systems with independent random perturbations in Hilbert spaces connected with uniform observability
Acta mathematica Universitatis Comenianae, Tome 74 (2005) no. 1
V. M. Ungureanu. The quadratic control for linear discrete-time systems with independent random perturbations in Hilbert spaces connected with uniform observability. Acta mathematica Universitatis Comenianae, Tome 74 (2005) no. 1. http://geodesic.mathdoc.fr/item/AMUC_2005_74_1_a9/
@article{AMUC_2005_74_1_a9,
     author = {V. M. Ungureanu},
     title = {The quadratic control for linear discrete-time systems with independent random perturbations in {Hilbert} spaces connected with uniform observability},
     journal = {Acta mathematica Universitatis Comenianae},
     year = {2005},
     volume = {74},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/AMUC_2005_74_1_a9/}
}
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The optimal control problem for linear discrete-time, time-varying systems with state dependent noise and quadratic control is considered. The asymptotic behavior of the solution of the related discrete-time Riccati equation is investigated. The existence of an optimal control, under stabilizability and uniform observability (respectively detectability) conditions, for the given quadratic cost function is proved.