Z. Gajic et R. Losada, Monotonicity of algebraic Lyapunov iterations for optimal control of jump parameter linear systems, SYST CONTR, 41(3), 2000, pp. 175-181
In this paper we show that the sequences of the solutions of the decoupled
algebraic Lyapunov equations are monotonic under proper initialization. The
se sequences converge from above to the positive-semidefinite stabilizing s
olutions of the system of coupled algebraic Riccati equations of the optima
l control problem of jump parameter linear systems. (C) 2000 Elsevier Scien
ce B.V. All rights reserved.