Uniqueness problem on numerical ranges of 3-by-3 companion matrices

研究成果: 雜誌貢獻期刊論文同行評審

摘要

Abstract For any two 3-by-3 companion matrices A and B with identical numerical ranges, we give a necessary and sufficient condition for A=B in terms of the shapes of numerical ranges and the locations of eigenvalues. In addition, all distinct 3-by-3 companion matrices with identical numerical ranges can be obtained precisely.

原文???core.languages.en_GB???
文章編號13216
頁(從 - 到)84-100
頁數17
期刊Linear Algebra and Its Applications
482
DOIs
出版狀態已出版 - 1 10月 2015

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