On Kippenhahn curves and higher-rank numerical ranges of some matrices
نویسندگان
چکیده
The higher rank numerical ranges of generic matrices are described in terms the components their Kippenhahn curves. Cases tridiagonal (in particular, reciprocal) 2-periodic treated more detail.
منابع مشابه
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ژورنال
عنوان ژورنال: Linear Algebra and its Applications
سال: 2021
ISSN: ['1873-1856', '0024-3795']
DOI: https://doi.org/10.1016/j.laa.2021.08.010