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Robust Stability of Polynomials: New Approach

Author

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  • N. E. Mastorakis

    (Hellenic Naval Academy)

Abstract

The problem of the robust stability of a Hurwitz polynomial which is the characteristic polynomial of a discrete-time linear time-invariant system is investigated. A new approach based on the Rouché theorem of classical complex analysis is adopted. An interesting sufficient condition for robust stability is derived. Three examples are included to support the theoretical result.

Suggested Citation

  • N. E. Mastorakis, 1997. "Robust Stability of Polynomials: New Approach," Journal of Optimization Theory and Applications, Springer, vol. 93(3), pages 635-638, June.
  • Handle: RePEc:spr:joptap:v:93:y:1997:i:3:d:10.1023_a:1022603415620
    DOI: 10.1023/A:1022603415620
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    Cited by:

    1. N. E. Mastorakis, 2000. "Optimum Radius of Robust Stability for Schur Polynomials," Journal of Optimization Theory and Applications, Springer, vol. 104(1), pages 165-174, January.

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