• DML-CZ Home

20M20 Semigroups of transformations, etc. (42 articles)

• Umar, Abdullahi: Presentations for subsemigroups of $PD_n$. (English). Czechoslovak Mathematical Journal, vol. 69 (2019), issue 2, pp. 417-426
• Petrich, Mario: Characterizing pure, cryptic and Clifford inverse semigroups. (English). Czechoslovak Mathematical Journal, vol. 64 (2014), issue 4, pp. 1099-1112
• Maltcev, Victor; Mazorchuk, Volodymyr: Presentation of the singular part of the Brauer monoid. (English). Mathematica Bohemica, vol. 132 (2007), issue 3, pp. 297-323
• Grillet, Pierre Antoine: Cancellative actions. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 44 (2003), issue 3, pp. 399-411
• Konieczny, Janusz: Regular, inverse, and completely regular centralizers of permutations. (English). Mathematica Bohemica, vol. 128 (2003), issue 2, pp. 179-186
• Hort, Daniel; Chvalina, Jan; Moučka, Jiří: Characterizations of totally ordered sets by their various endomorphisms. (English). Czechoslovak Mathematical Journal, vol. 52 (2002), issue 1, pp. 23-32
• Konieczny, Janusz: Second centralizers of partial transformations. (English). Czechoslovak Mathematical Journal, vol. 51 (2001), issue 4, pp. 873-888
• Janos, L.: Compactification and linearization of abstract dynamical systems. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 38 (1997), issue 1, pp. 63-70
• Ježek, Jaroslav; Kepka, Tomáš: Bijective reflexions and coreflexions of commutative unars. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 37 (1996), issue 1, pp. 31-40
• Magill, K. D., Jr.: The largest proper regular ideal of $S(X)$. (English). Czechoslovak Mathematical Journal, vol. 46 (1996), issue 1, pp. 73-82
• Zelinka, Bohdan: Subtraction semigroups. (English). Mathematica Bohemica, vol. 120 (1995), issue 4, pp. 445-447
• Petrich, Mario: The translational hull of a normal cryptogroup. (English). Mathematica Slovaca, vol. 44 (1994), issue 2, pp. 245-262
• Magill, Kenneth D., Jr.: On the ideals of the semigroup of the 1-sphere. (English). Czechoslovak Mathematical Journal, vol. 39 (1989), issue 2, pp. 248-261
• Skornyakov, L. A.: О регулярности элементов релятива. (Russian) [On the regularity of the elements of a relative]. Archivum Mathematicum, vol. 25 (1989), issue 1, pp. 103-106
• Kossaczký, Igor: Green's relations and regular elements of transformation semigroups. (English). Mathematica Slovaca, vol. 37 (1987), issue 2, pp. 159-168
• Skornyakov, L. A.: Идемпотенты полугруппы бесконечных стохастических матриц. (Russian) [Idempotents of the semigroup of infinite stochastic matrices]. Mathematica Slovaca, vol. 37 (1987), issue 1, pp. 125-134
• Blažková, Růžena; Chvalina, Jan: Regularity and transitivity of local-automorphism semigroups of locally finite forests. (English). Archivum Mathematicum, vol. 20 (1984), issue 4, pp. 183-194
• Sullivan, Robert P.: Semi-automorphisms of transformation semigroups. (English). Czechoslovak Mathematical Journal, vol. 33 (1983), issue 4, pp. 548-554
• Kučera, Luděk: On the monoids of homomorphisms of semigroups with unity. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 23 (1982), issue 2, pp. 369-381
• Hardy, D.; Pastijn, Francis J.: The maximal regular ideal of the semigroup of binary relations. (English). Czechoslovak Mathematical Journal, vol. 31 (1981), issue 2, pp. 194-198
• Kmeť, František: On radicals of the semigroup of triangular matrices. (English). Mathematica Slovaca, vol. 31 (1981), issue 4, pp. 365-368
• Schwarz, Štefan: The Euler-Fermat theorem for the semigroup of circulant Boolean matrices. (English). Czechoslovak Mathematical Journal, vol. 30 (1980), issue 1, pp. 135-141
• Kastl, Jan: Innere Translationen der kleinen Kategorien. (German). Mathematica Slovaca, vol. 28 (1978), issue 2, pp. 127-137
• Sullivan, Robert P.: Ideals in transformation semigroups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 19 (1978), issue 3, pp. 431-446
• Ferst, P.; Slačálek, P.: On autogenerating systems. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 18 (1977), issue 2, pp. 35-42
• Kastl, Jan: Die $K$-abgeschlossenen Teilmengen der Halbgruppen. (German) [The $K$-closed subsets of semigroups]. Commentationes Mathematicae Universitatis Carolinae, vol. 17 (1976), issue 1, pp. 135-146
• Kastl, Jan; Tichý, Tomáš: Die Darstellung von partiellen $K$-stelligen Operationen. (German) [The representation of partial $K$-ary operations]. Commentationes Mathematicae Universitatis Carolinae, vol. 17 (1976), issue 1, pp. 167-178
• Chvalina, J.: Set transformations with centralizers formed by closed deformations of quasi-discrete topological spaces. (English). In: Novák, Josef (ed.): General topology and its relations to modern analysis and algebra IV, Proceedings of the fourth Prague topological symposium, 1976. Part B: Contributed Papers. Society of Czechoslovak Mathematicians and Physicist, Praha, 1977. pp. [83]-89
• Hartfiel, Darald J.; Maxson, Carlton J.: A matrix characterization of the maximal groups in $\beta_X$. (English). Czechoslovak Mathematical Journal, vol. 25 (1975), issue 2, pp. 274-278
• Münzová-Demlová, Marie: Transformations determining uniquely a monoid. III: Weak determinancy. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 16 (1975), issue 3, pp. 549-566
• Münzová-Demlová, Marie: Transformations determining uniquely a monoid. IV: Weak determinancy. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 16 (1975), issue 4, pp. 603-619
• Münzova, M.: Transformations determining uniquely a monoid. II. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 15 (1974), issue 2, pp. 311-333
• Magill, Kenneth D., Jr.: Connected CM-homomorphisms into $\frak C[I]$. (English). Czechoslovak Mathematical Journal, vol. 23 (1973), issue 2, pp. 257-268
• Schwarz, Štefan: The semigroup of fully indecomposable relations and Hall relations. (English). Czechoslovak Mathematical Journal, vol. 23 (1973), issue 1, pp. 151-163
• Stach, K.: Einige Bemerkungen zur Verzweigung des Punktes durch einen Komplex von Transformationen. (German). Acta Universitatis Carolinae. Mathematica et Physica, vol. 13 (1972), issue 2, pp. 53-59
• Nešetřil, Jaroslav: Every group is a maximal subgroup of the semigroup of relations. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 12 (1971), issue 1, pp. 19-21
• Goralčík, Pavel: One remarkable property of the bicyclic semigroup. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 12 (1971), issue 3, pp. 503-518
• Magill, K. D., Jr.: Semigroups and near-rings of continuous functions. (English). In: Novák, J. (ed.): General Topology and its Relations to Modern Analysis and Algebra. Proceedings of the Third Prague Topological Symposium, 1971. Academia Publishing House of the Czechoslovak Academy of Sciences, Praha, 1972. pp. 283-288
• Schwarz, Štefan: On the semigroup of binary relations on a finite set. (English). Czechoslovak Mathematical Journal, vol. 20 (1970), issue 4, pp. 632-679
• Münzová-Demlová, Marie: Transformations determining uniquely a monoid. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 11 (1970), issue 4, pp. 595-618
• Salii, V. N.: Полугруппы случайных отношений. (Russian) [Semigroups of Random Relations]. Matematický časopis, vol. 20 (1970), issue 2, pp. 122-134
• Skula, Ladislav: Prime elements in the semigroup of finite types of partially ordered sets in cardinal multiplication. (English). Archivum Mathematicum, vol. 4 (1968), issue 2, pp. 97-101