We consider a MIMO linear time-invariant feedback system1 which is assumed to be -stable. The plant is subjected to an additive perturbation which is proper but not necessarily stable. We prove that the perturbed system is -stable if and only if is -stable. (Here
Keywords :
Perturbation methods; Robustness, linear systems; Artificial intelligence; Helium; MIMO; Robust stability; State feedback; Sufficient conditions; Writing;