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		Jiuwen CAO,Shouming ZHONG,Yuanyuan HU.[en_title][J].Control Theory and Technology,2007,5(4):357~364.[Copy]

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JiuwenCAO,ShoumingZHONG,YuanyuanHU
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Received:October 22, 2006Revised:March 23, 2007

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A descriptor system approach to robust stability of uncertain degenerate systems with discrete and distribute delays

Jiuwen CAO, Shouming ZHONG, Yuanyuan HU

(College of Applied Mathematics, University of Electronic Science and Technology of China, Chengdu Sichuan 610054, China)

Abstract:

The robust stability of uncertain linear degenerate systems with discrete and distributed delays is studied in this paper. The uncertainties under consideration are norm bounded, and possibly time varying. A novel robust stability criterion of the system is derived by constructing Lyapunov functions. The degenerate systems are transformed to a descriptor system and the stability criteria are formulated in the form of a linear matrix inequality (LMI). Therefore, it is easy to check the robust stability of the degenerate systems by using this method. Numerical examples are also worked out to illustrate the obtained results.

Key words: Degenerate system Discrete delay Distributed delay Linear matrix inequality (LMI)