The Robust Stability for Interval-Polynomial

Abstract:

      In this paper, a new stability criterion for positive-coefficient polynomialis given. Then the problem about the robust stability for an interval-polynomial is in-vestigated and some new stability criterions for interval-polynomials are obtained. Thecoefficient perturbation bound for stable interval polynomial can be completely deter-mined by the coefficients of polynomial (1.1). So the conclusions of this paper are silmpleand useful. Several examples iu the end of this paper show that the criterions given inthis paper are effective.