The ratios between the spectral norm, the numerical radius and the spectral radius

نویسنده

  • Kui Du
چکیده

Recently, Uhlig [Numer. Algorithms, 52(3):335-353, 2009] proposed open questions about the ratios between the spectral norm, the numerical radius and the spectral radius of a square matrix. In this note, we provide some observations to answer these questions. Keywords—Spectral norm, Numerical radius, Spectral radius, Ratios

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تاریخ انتشار 2012