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Merikoski, Jorma Kaarlo ; Virtanen, Ari
On elementary symmetric functions of the eigenvalues of the sum and product of normal matrices. (English). Czechoslovak Mathematical Journal, vol. 42 (1992), issue 2, pp. 193-198
MSC: 15A18, 15A42, 15A57 | MR 1179491 | Zbl 0779.15002 | DOI: 10.21136/CMJ.1992.128332
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[7] G. N. de Oliveira: Research problem: Normal matrices. Linear and Multilinear Аlgebra 72: 153-154(1982).
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