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Author: Chajda, Ivan

• 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
• Chajda, Ivan; Kolařík, Miroslav; Švrček, Filip: Properties of relatively pseudocomplemented directoids. (English). Mathematica Bohemica, vol. 136 (2011), issue 1, pp. 9-23
• Chajda, Ivan: A characterization of commutative basic algebras. (English). Mathematica Bohemica, vol. 134 (2009), issue 2, pp. 113-120
• Chajda, Ivan: Ring-like structures derived from $\lambda $-lattices with antitone involutions. (English). Mathematica Bohemica, vol. 132 (2007), issue 1, pp. 87-96
• Chajda, Ivan: Generalized deductive systems in subregular varieties. (English). Mathematica Bohemica, vol. 128 (2003), issue 3, pp. 319-324
• Chajda, Ivan: Characterizing binary discriminator algebras. (English). Mathematica Bohemica, vol. 125 (2000), issue 4, pp. 497-504
• Chajda, Ivan: A note on congruence kernels in ortholattices. (English). Mathematica Bohemica, vol. 125 (2000), issue 2, pp. 169-172
• Chajda, Ivan: Uniformity of congruences in coherent varieties. (English). Mathematica Bohemica, vol. 125 (2000), issue 3, pp. 269-273
• Chajda, Ivan; Snášel, Václav: Congruences in ordered sets. (English). Mathematica Bohemica, vol. 123 (1998), issue 1, pp. 95-100
• Chajda, Ivan: Jónsson's lemma for normally presented varieties. (English). Mathematica Bohemica, vol. 122 (1997), issue 4, pp. 381-382
• Chajda, Ivan: Rees ideal algebras. (English). Mathematica Bohemica, vol. 122 (1997), issue 2, pp. 125-130
• Chajda, Ivan; Emanovský, Petr: $\Sigma$-Hamiltonian and $\Sigma$-regular algebraic structures. (English). Mathematica Bohemica, vol. 121 (1996), issue 2, pp. 177-182
• Chajda, Ivan; Emanovský, Petr: Modularity and distributivity of the lattice of $\Sigma$-closed subsets of an algebraic structure. (English). Mathematica Bohemica, vol. 120 (1995), issue 2, pp. 209-217
• Chajda, Ivan; Emanovský, Petr: $\Sigma$-isomorphic algebraic structures. (English). Mathematica Bohemica, vol. 120 (1995), issue 1, pp. 71-81
• Chajda, Ivan: An algebra of quasiordered logic. (English). Mathematica Bohemica, vol. 119 (1994), issue 2, pp. 129-135
• Chajda, Ivan: Algebras with $n$-transferable tolerances. (English). Mathematica Bohemica, vol. 119 (1994), issue 2, pp. 137-142