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Flat portions on the boundary of the numerical ranges of certain Toeplitz matrices

✍ Scribed by Chien, Mao-Ting; Nakazato, Hiroshi


Book ID
126709775
Publisher
Taylor and Francis Group
Year
2008
Tongue
English
Weight
205 KB
Volume
56
Category
Article
ISSN
0308-1087

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Flat portions on the boundary of the Dav
✍ Mao-Ting Chien; Hiroshi Nakazato πŸ“‚ Article πŸ“… 2009 πŸ› Elsevier Science 🌐 English βš– 148 KB

Let T be an n Γ— n matrix. The Davis-Wielandt shell of T is defined as the set In this paper, we discuss the existence of flat portions on the boundary of the Davis-Wielandt shell of 3-by-3 matrices.