Invariance of the aperiodic property for polynomials with perturbed coefficients. (English) Zbl 0708.93015

Soh, C. B.

IEEE Trans. Autom. Control 35, No. 5, 616-618 (1990).

MSC:

93B35	Sensitivity (robustness)
93C05	Linear systems in control theory
30C15	Zeros of polynomials, rational functions, and other analytic functions of one complex variable (e.g., zeros of functions with bounded Dirichlet integral)

Keywords:

nominal characteristic equation; perturbed polynomial; strictly aperiodic