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Numerical radius inequalities for operator matrices |
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| Authors: | Wathiq Bani-Domi |
| Affiliation: | Department of Mathematics , Jerash Private University , Jerash, Jordan |
| Abstract: | We prove a numerical radius inequality for operator matrices, which improves an earlier inequality due to Hou and Du. As an application of this numerical radius inequality, we derive a new bound for the zeros of polynomials. |
| Keywords: | numerical radius inequality operator matrix companion matrix zeros of polynomials |