Auflistung nach Autor "Aretaki A., Chorianopoulos C."
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On the envelope of some classes of 3 by 3 matrices
Aretaki A., Chorianopoulos C. (2022)The envelope of a square complex matrix is a closed and bounded subset of the numerical range which contains the spectrum. We study the envelope of special classes of 3×3 matrices such as the nilpotent and the unitarily ...