IEEE Transactions on Automatic Control, Vol.43, No.5, 689-689, 1998
Comments on "D-Stability of continuous time-delay systems subjected to a class of highly structured perturbations"
In this paper, we wish to point out that the proof of the main results in the above-mentioned paper(1) is incorrect, Furthermore, we will verify that there exists no continuous time-delay system guaranteeing the D(alpha, r)-stability.