Author: Länger, Helmut

Chajda, Ivan; Kolařík, Miroslav; Länger, Helmut: c-ideals in complemented posets. (English). Mathematica Bohemica, vol. 149 (2024), issue 3, pp. 305-316
Chajda, Ivan; Länger, Helmut: Monotone and cone preserving mappings on posets. (English). Mathematica Bohemica, vol. 148 (2023), issue 2, pp. 197-210
Chajda, Ivan; Länger, Helmut: Orthogonality and complementation in the lattice of subspaces of a finite vector space. (English). Mathematica Bohemica, vol. 147 (2022), issue 2, pp. 141-153
Chajda, Ivan; Länger, Helmut: Residuation in twist products and pseudo-Kleene posets. (English). Mathematica Bohemica, vol. 147 (2022), issue 3, pp. 369-383
Chajda, Ivan; Länger, Helmut: Relatively pseudocomplemented posets. (English). Mathematica Bohemica, vol. 143 (2018), issue 1, pp. 89-97
Chajda, Ivan; Länger, Helmut: States on basic algebras. (English). Mathematica Bohemica, vol. 142 (2017), issue 2, pp. 197-210
Chajda, Ivan; Länger, Helmut: An ordered structure of pseudo-BCI-algebras. (English). Mathematica Bohemica, vol. 141 (2016), issue 1, pp. 91-98
Chajda, Ivan; Länger, Helmut; Švrček, Filip: Multiplicatively idempotent semirings. (English). Mathematica Bohemica, vol. 140 (2015), issue 1, pp. 35-42
Chajda, Ivan; Länger, Helmut: Groupoids assigned to relational systems. (English). Mathematica Bohemica, vol. 138 (2013), issue 1, pp. 15-23

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