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

Kui Du*

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

Abstract

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.

Original languageEnglish
Pages (from-to)93-96
Number of pages4
JournalWorld Academy of Science, Engineering and Technology
Volume68
Publication statusPublished - 1 Aug 2010
MoE publication typeA1 Journal article-refereed

Keywords

  • Numerical radius
  • Ratios
  • Spectral norm
  • Spectral radius

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