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20M05 Free semigroups, generators and relations, word problems (32 articles)

• Nagy, Attila: On congruence permutable $G$-sets. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 61 (2020), issue 2, pp. 139-145
• Krapež, Aleksandar; Marinković, Bojan: Isotopy invariant quasigroup identities. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 57 (2016), issue 4, pp. 537-547
• Słanina, Piotr: On some free semigroups, generated by matrices. (English). Czechoslovak Mathematical Journal, vol. 65 (2015), issue 2, pp. 289-299
• Krause, Ulrich; Maney, Jack; Ponomarenko, Vadim: Diversity in inside factorial monoids. (English). Czechoslovak Mathematical Journal, vol. 62 (2012), issue 3, pp. 811-827
• Maney, Jack; Ponomarenko, Vadim: Diversity in monoids. (English). Czechoslovak Mathematical Journal, vol. 62 (2012), issue 3, pp. 795-809
• Cegarra, Antonio M.; Petrich, Mario: The rank of a commutative semigroup. (English). Mathematica Bohemica, vol. 134 (2009), issue 3, pp. 301-318
• Descalço, L.; Ruškuc, N.: Properties of the subsemigroups of the bicyclic monoid. (English). Czechoslovak Mathematical Journal, vol. 58 (2008), issue 2, pp. 311-330
• Maltcev, Victor; Mazorchuk, Volodymyr: Presentation of the singular part of the Brauer monoid. (English). Mathematica Bohemica, vol. 132 (2007), issue 3, pp. 297-323
• Flaška, Václav; Kepka, Tomáš: Commutative zeropotent semigroups. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 47 (2006), issue 1, pp. 3-14
• Ayik, Hayrullah: On finiteness conditions for Rees matrix semigroups. (English). Czechoslovak Mathematical Journal, vol. 55 (2005), issue 2, pp. 455-463
• Thron, R.; Koppitz, J.: Lattice-theoretically characterized classes of finite bands. (English). Archivum Mathematicum, vol. 39 (2003), issue 1, pp. 1-10
• Rosales, J. C.; García-García, J. I.: Principal ideals of finitely generated commutative monoids. (English). Czechoslovak Mathematical Journal, vol. 52 (2002), issue 1, pp. 75-85
• Ježek, Jaroslav: Some decidable congruences of free monoids. (English). Czechoslovak Mathematical Journal, vol. 49 (1999), issue 3, pp. 475-480
• Antonippillai, A.; Pastijn, Francis: Subsemigroups of completely simple semigroups. III. (English). Mathematica Slovaca, vol. 44 (1994), issue 2, pp. 263-278
• Auinger, Karl: Free locally inverse *-semigroups. (English). Czechoslovak Mathematical Journal, vol. 43 (1993), issue 3, pp. 523-545
• Brožíková, Elena: On universal quasigroup identities. (English). Mathematica Bohemica, vol. 117 (1992), issue 1, pp. 20-32
• Howie, John M.: Embedding semigroups in nilpotent-generated semigroups. (English). Mathematica Slovaca, vol. 39 (1989), issue 1, pp. 47-54
• Kepka, T.; Zejnullahu, A.: Finitely generated left distributive semigoups. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 30 (1989), issue 1, pp. 33-36
• Zejnullahu, A.: Free left distributive semigroups. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 30 (1989), issue 1, pp. 29-32
• Kepka, T.: Varieties of left distributive semigroups. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 25 (1984), issue 1, pp. 3-18
• de Bodt, Ann; Satyanarayana, M.: On semigroups admitting ring structure III. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 24 (1983), issue 2, pp. 17-22
• Chao, Chong-Yun; Zhang, Mou-Cheng: On the semigroup of fully indecomposable relations. (English). Czechoslovak Mathematical Journal, vol. 33 (1983), issue 2, pp. 314-319
• Andréka, Hajnal; Németi, István; Šulka, Robert: Remark on one-sided $A$-ideals of semigroups. (English). Mathematica Slovaca, vol. 33 (1983), issue 2, pp. 231-235
• Šulka, Robert: The minimal right $A$-ideal of the free semigroup on a countable set. (English). Mathematica Slovaca, vol. 32 (1982), issue 3, pp. 301-304
• Fabrici, Imrich; Macko, Tibor: On bases and maximal ideals in semigroups. (English). Mathematica Slovaca, vol. 31 (1981), issue 2, pp. 115-120
• Šulka, Robert: Remark on partially ordered sets, universal algebras and semigroups. (English). Mathematica Slovaca, vol. 29 (1979), issue 2, pp. 131-139
• Ježek, Jaroslav: Terms and semiterms. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 20 (1979), issue 3, pp. 447-460
• Ferst, P.; Slačálek, P.: On autogenerating systems. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 18 (1977), issue 2, pp. 35-42
• Iwanik, A.; Płonka, J.: Linear independence in commutative semigroups. (English). Matematický časopis, vol. 25 (1975), issue 4, pp. 333-338
• Gregor, Radovan: On rich monoids. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 16 (1975), issue 4, pp. 735-743
• Mielke, Bruce W.: A note on Green's relations in $\mathcal{B}\mathcal{Q}$-semigroups. (English). Czechoslovak Mathematical Journal, vol. 22 (1972), issue 2, pp. 224-229
• Markov, Aleksandr Aleksandrovich: Комбинаторная характеристика конечных базисоов чистых свободных полугрупп. (Russian) [A combinatorial characterization of finite bases of pure free semigroups]. Matematický časopis, vol. 19 (1969), issue 2, pp. 158-165