Author: Pták, Vlastimil

Fiedler, Miroslav; Pták, Vlastimil: Generalized norms of matrices and the location of the spectrum. (English). Czechoslovak Mathematical Journal, vol. 12 (1962), issue 4, pp. 558-571
Pták, Vlastimil: Norms and the spectral radius of matrices. (English). Czechoslovak Mathematical Journal, vol. 12 (1962), issue 4, pp. 555-557
Fiedler, Miroslav; Pták, Vlastimil: On matrices with non-positive off-diagonal elements and positive principal minors. (English). Czechoslovak Mathematical Journal, vol. 12 (1962), issue 3, pp. 382-400
Pták, Vlastimil: The principle of uniform boundedness and the closed graph theorem. (English). Czechoslovak Mathematical Journal, vol. 12 (1962), issue 4, pp. 523-528

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