Author: Kala, Vítězslav

Kala, Vítězslav; Kepka, Tomáš: Commutative parasemifields finitely generated as semirings. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 51 (2010), issue 1, pp. 49-56
Kala, Vítězslav; Kepka, Tomáš; Němec, Petr: Norms on semirings. I. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 51 (2010), issue 1, pp. 29-48
Flaška, Václav; Jančařík, Antonín; Kala, Vítězslav; Kepka, Tomáš: Trees in commtative nil-semigroups of index two. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 48 (2007), issue 1, pp. 81-101

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