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Robust Stability of Hurwitz Polynomials Associated with Modified Classical Weights

Alejandro Arceo, Luis E. Garza, Gerardo Romero
2019 Mathematics  
In this contribution, we consider sequences of orthogonal polynomials associated with a perturbation of some classical weights consisting of the introduction of a parameter t, and deduce some algebraic properties related to their zeros, such as their equations of motion with respect to t. These sequences are later used to explicitly construct families of polynomials that are stable for all values of t, i.e., robust stability on these families is guaranteed. Some illustrative examples are presented.
more » ... examples are presented.
doi:10.3390/math7090818 fatcat:r4eegctkezbjhbckujq3zg52vq