Zero-dilation Indices of KMS Matrices
نویسندگان
چکیده
منابع مشابه
Zero-dilation Indices of Kms Matrices Hwa-long Gau and Pei
The zero-dilation index d(A) of an n-by-n complex matrix A is the maximum size of the zero matrix which can be dilated to A. In this paper, we determine the value of this index for the KMS matrix Jn(a) = 0 a a · · · an−1 0 a . . . .. . . . . . . a . . . a 0 0 , a ∈ C and n ≥ 1, by using the Li–Sze characterization of higher-rank numerical ranges of a finite matrix. 1 Departmen...
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ژورنال
عنوان ژورنال: Annals of Functional Analysis
سال: 2014
ISSN: 2008-8752
DOI: 10.15352/afa/1391614566