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An EnestrÖm-Kakeya Theorem for Hermitian Polynomial Matrices |
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| Authors: | Dirr G Wimmer HK |
| Affiliation: | Univ. of Wurzburg, Wurzburg; |
| Abstract: | We extend the Enestroumlm-Kakeya theorem and its refinement by Hurwitz to polynomial matrices with positive semidefinite coefficients. We determine an annular region containing the zeros of . A stability result for systems of linear difference equations is given as an application. |
| Keywords: | |