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Containment regions for zeros of polynomials from numerical ranges of companion matrices |
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| Authors: | Hansj rg Linden |
| Affiliation: | Fachbereich Mathematik, Fernuniversität-Gesamthochschule, Postfach 940, Lützowstr. 125, D-58084 Hagen, Germany |
| Abstract: | Containment regions for the zeros of a monic polynomial are given with the aid of results for containment regions for the numerical range of certain bordered diagonal matrices which are applied to different types of companion matrices of the polynomial. |
| Keywords: | Numerical range Bordered diagonal matrix Companion matrix Zeros of polynomials |
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