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On the Optimum Radius of Robust Stability for Schur Polynomials |
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| Authors: | Gao LX Sun YX |
| Institution: | (1) National Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang, PRC;(2) National Laboratory of Industrial Control Technology, Zhejiang University, Hangzhou, Zhejiang, PRC |
| Abstract: | A recent paper (Ref. 1) established a new approach to estimate the robust stability radius of a Schur polynomial. This note points out that the approach given in Ref. 1 is not correct and also gives a counterexample to the main result of Ref. 1. |
| Keywords: | Schur stability robust stability radius polynomials |
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