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Author: Chajda, Ivan

• Chajda, Ivan: A Note on Pseudo-Kleene Algebras. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 55 (2016), issue 1, pp. 39-45
• Chajda, Ivan; Ledda, Antonio; Paoli, Francesco: Compatible Idempotent Terms in Universal Algebra. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 53 (2014), issue 2, pp. 35-51
• Chajda, Ivan; Länger, Helmut: Orthomodular Posets Can Be Organized as Conditionally Residuated Structures. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 53 (2014), issue 2, pp. 29-33
• Chajda, Ivan: The Role of Halaš Identity in Orthomodular Lattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 53 (2014), issue 1, pp. 19-24
• Chajda, Ivan; Švrček, Filip: The Rings Which Can Be Recovered by Means of the Difference. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 52 (2013), issue 1, pp. 49-55
• Chajda, Ivan: Pseudocomplemented and Stone Posets. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 51 (2012), issue 1, pp. 29-34
• Chajda, Ivan; Kolařík, Miroslav; Švrček, Filip: Implication and equivalential reducts of basic algebras. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 49 (2010), issue 2, pp. 21-36
• Chajda, Ivan; Länger, Helmut: Quotients and homomorphisms of relational systems. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 49 (2010), issue 2, pp. 37-47
• Chajda, Ivan; Kolařík, Miroslav: Basic pseudorings. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 48 (2009), issue 1, pp. 25-31
• Chajda, Ivan: Conjugated algebras. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 48 (2009), issue 1, pp. 17-23
• Chajda, Ivan: Discriminator order algebras. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 47 (2008), issue 1, pp. 23-25
• Chajda, Ivan; Kolařík, Miroslav: Monadic basic algebras. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 47 (2008), issue 1, pp. 27-36
• Chajda, Ivan; Kolařík, Miroslav: Ideals, congruences and annihilators on nearlattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 46 (2007), issue 1, pp. 25-33
• Chajda, Ivan; Halaš, Radomír: Varieties satisfying the triangular scheme need not be congruence distributive. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 46 (2007), issue 1, pp. 19-24
• Chajda, Ivan; Kolařík, Miroslav: A decomposition of homomorphic images of nearlattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 45 (2006), issue 1, pp. 43-51
• Chajda, Ivan: Directoids with sectionally switching involutions. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 45 (2006), issue 1, pp. 35-41
• Chajda, Ivan: A groupoid characterization of orthomodular lattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 44 (2005), issue 1, pp. 13-18
• Chajda, Ivan: Sheffer operation in ortholattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 44 (2005), issue 1, pp. 19-23
• Chajda, Ivan: Class preserving mappings of equivalence systems. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 43 (2004), issue 1, pp. 61-64
• Chajda, Ivan; Dorfer, Gerhard; Länger, Helmut: Local versions of some congruence properties in single algebras. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 43 (2004), issue 1, pp. 65-73
• Chajda, Ivan; Zedník, Josef: Distributivity and modularity of lattices of quasiorders. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 42 (2003), issue 1, pp. 13-18
• Chajda, Ivan: A characterization of congruence kernels in pseudocomplemented semilattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 41 (2002), issue 1, pp. 35-37
• Chajda, Ivan: A common generalization of permutability and 0-permutability. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 40 (2001), issue 1, pp. 23-29
• Chajda, Ivan; Länger, Helmut: A simple basis of ideal terms of Brouwerian semilattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 40 (2001), issue 1, pp. 37-42
• Chajda, Ivan: Varieties which are locally regular and permutable at 0. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 40 (2001), issue 1, pp. 31-35
• Chajda, Ivan; Graczyńska, Ewa: Algebras presented by normal identities. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 38 (1999), issue 1, pp. 49-58
• Chajda, Ivan: Algebras satisfying certain quasiorder identities. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 38 (1999), issue 1, pp. 35-41
• Chajda, Ivan: Locally coherent algebras. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 38 (1999), issue 1, pp. 43-48
• Chajda, Ivan; Halaš, Radomír; Zedník, Josef: Filters and annihilators in implication algebras. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 37 (1998), issue 1, pp. 41-45
• Chajda, Ivan: The degrees of regularity in varieties. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 36 (1997), issue 1, pp. 27-31
• Bělohlávek, Radim; Chajda, Ivan: Polynomially determined congruences in algebras without constants. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 36 (1997), issue 1, pp. 7-14
• Chajda, Ivan: Congruence semimodularity of conservative groupoids. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 35 (1996), issue 1, pp. 43-45
• Chajda, Ivan: Regularity and permutability via transferability of tolerances. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 35 (1996), issue 1, pp. 39-42
• Chajda, Ivan: Tolerance lattice of algebras with restricted similarity type. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 34 (1995), issue 1, pp. 59-62
• Chajda, Ivan: Varieties having the congruence extension property. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 34 (1995), issue 1, pp. 63-68
• Chajda, Ivan; Halaš, Radomír: Genomorphisms of lattices and semilattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 33 (1994), issue 1, pp. 23-27
• Chajda, Ivan: Principal tolerances on lattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 33 (1994), issue 1, pp. 17-22
• Chajda, Ivan: Regular lattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 32 (1993), issue 1, pp. 17-20
• Chajda, Ivan: Subdirectly irreducible algebras of quasiordered logics. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 32 (1993), issue 1, pp. 21-26
• Chajda, Ivan: Lattices in quasiordered sets. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 31 (1992), issue 1, pp. 6-12
• Chajda, Ivan: A note on varieties with distributive subalgebra lattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 31 (1992), issue 1, pp. 25-28
• Chajda, Ivan; Haviar, Miroslav: Induced pseudoorders. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 30 (1991), issue 1, pp. 9-16
• Chajda, Ivan: Permutability of congruences in varieties with idempotent operations. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 30 (1991), issue 1, pp. 33-37
• Chajda, Ivan: Quasicomplemented semilattices. (English). Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica, vol. 29 (1990), issue 1, pp. 11-22