Author: Křížek, Michal

Brandts, Jan; Křížek, Michal: Factorization of CP-rank-$3$ completely positive matrices. (English). Czechoslovak Mathematical Journal, vol. 66 (2016), issue 3, pp. 955-970
Somer, Lawrence; Křížek, Michal: The structure of digraphs associated with the congruence $x^k\equiv y \pmod n$. (English). Czechoslovak Mathematical Journal, vol. 61 (2011), issue 2, pp. 337-358
Somer, Lawrence; Křížek, Michal: On a connection of number theory with graph theory. (English). Czechoslovak Mathematical Journal, vol. 54 (2004), issue 2, pp. 465-485

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