Author: Pták, Vlastimil

Pták, Vlastimil: Biorthogonal systems and reflexivity of Banach spaces. (English). Czechoslovak Mathematical Journal, vol. 9 (1959), issue 3, pp. 319-326
Pták, Vlastimil: A combinatorial theorem on systems of inequalities and its application to analysis. (English). Czechoslovak Mathematical Journal, vol. 9 (1959), issue 4, pp. 629-630
Pták, Vlastimil: On the closed graph theorem. (English). Czechoslovak Mathematical Journal, vol. 9 (1959), issue 4, pp. 523-527

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