Comments on “Perturbation bounds for root-clustering oflinear systems in a specified second order subregion” |
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Authors: | Sheng-Guo Wang |
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Affiliation: | Dept. of Electr. Eng., Texas A&M Univ., Prairie View, TX; |
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Abstract: | This paper comments on the results of the above mentioned paper by Bakker-Luo-Johnson (ibid. vol.40 (1995)). We note that Theorems 3.1 and 4.1 are incorrectly stated, i.e., they are not valid for the non-Ω-transformable regions. The results cannot cover the ride quality region listed in Table 1 since it is a non-Ω-transformable region |
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