On some properties for the sequence of Brualdi-Li matrices (Q1791431)

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scientific article; zbMATH DE number 6950976
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On some properties for the sequence of Brualdi-Li matrices
scientific article; zbMATH DE number 6950976

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    On some properties for the sequence of Brualdi-Li matrices (English)
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    10 October 2018
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    Summary: Let \(B_{2n}\) denote the Brualdi-Li matrix, and let \(\rho_{2n}=\rho(B_{2n})\) denote the Perron value of the Brualdi-Li matrix of order \(2n\). We prove that \(2n(n-1/2-\rho_{2n})\) is monotonically decreasing for all \(n\) and \(\rho_{2n}<n-1/2-(e^2-1)/4(e^2+1)n\), where \(e= 2.718281828459045\ldots\).
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