20 Group theory and generalizations
20M30 Representation of semigroups; actions of semigroups on sets (40 articles)
-
Nagy, Attila; Tóth, Csaba:
On special Rees matrix semigroups over semigroups.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 64
(2023),
issue 3,
pp. 279-288
-
Umar, Abdullahi:
Presentations for subsemigroups of $PD_n$.
(English).
Czechoslovak Mathematical Journal,
vol. 69
(2019),
issue 2,
pp. 417-426
-
Golchin, Akbar; Rezaei, Parisa; Mohammadzadeh, Hossein:
On strongly $(P)$-cyclic acts.
(English).
Czechoslovak Mathematical Journal,
vol. 59
(2009),
issue 3,
pp. 595-611
-
Bashir, Robert El; Kepka, Tomáš:
Commutative zeropotent semigroups with few invariant congruences.
(English).
Czechoslovak Mathematical Journal,
vol. 58
(2008),
issue 4,
pp. 865-885
-
Bashir, Robert El; Kepka, Tomáš; Kechlibar, Marian:
Commutative semigroups with few fully invariant congruences I.
(English).
Acta Universitatis Carolinae. Mathematica et Physica,
vol. 46
(2005),
issue 1,
pp. 49-64
-
Bashir, Robert El; Kepka, Tomáš; Kechlibar, Marian:
Commutative semigroups with few fully invariant congruences II.
(English).
Acta Universitatis Carolinae. Mathematica et Physica,
vol. 46
(2005),
issue 1,
pp. 65-75
-
Sander, Wolfgang; Siedekum, Jens:
Multiplication, distributivity and fuzzy-integral. I.
(English).
Kybernetika,
vol. 41
(2005),
issue 3,
pp. [397]-422
-
Sander, Wolfgang; Siedekum, Jens:
Multiplication, distributivity and fuzzy-integral. II.
(English).
Kybernetika,
vol. 41
(2005),
issue 4,
pp. [469]-496
-
Sander, Wolfgang; Siedekum, Jens:
Multiplication, distributivity and fuzzy-integral. III.
(English).
Kybernetika,
vol. 41
(2005),
issue 4,
pp. [497]-518
-
Grillet, Pierre Antoine:
Cancellative actions.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 44
(2003),
issue 3,
pp. 399-411
-
Drewniak, Jósef; Sobera, Jolanta:
Structure of partially ordered cyclic semigroups.
(English).
Czechoslovak Mathematical Journal,
vol. 53
(2003),
issue 4,
pp. 777-791
-
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
-
Cho, Jung R.; Ježek, Jaroslav; Kepka, Tomáš:
Paramedial groupoids.
(English).
Czechoslovak Mathematical Journal,
vol. 49
(1999),
issue 2,
pp. 277-290
-
Cho, Jung R.; Ježek, Jaroslav; Kepka, Tomáš:
Simple paramedial groupoids.
(English).
Czechoslovak Mathematical Journal,
vol. 49
(1999),
issue 2,
pp. 391-399
-
Koubek, Václav:
Finite-to-finite universal varieties of distributive double $p$-algebras.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 31
(1990),
issue 1,
pp. 67-83
-
Trnková, Věra:
Products of metric, uniform and topological spaces.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 31
(1990),
issue 1,
pp. 167-180
-
Koubek, Václav:
Representations in varieties of regular involution bands.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 31
(1990),
issue 2,
pp. 201-211
-
Puš, Vladimír:
Representation of semigroups by products of simple graphs.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 30
(1989),
issue 2,
pp. 227-234
-
Lemin, A. J.:
An application of the theory of isosceles (ultrametric) spaces to the Trnková-Vinárek theorem.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 29
(1988),
issue 3,
pp. 427-434
-
Trnková, Věra:
Simultaneous representations in discrete structures.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 27
(1986),
issue 4,
pp. 633-649
-
Trnková, Věra:
Countable Hausdorff spaces with countable weight.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 26
(1985),
issue 4,
pp. 749-770
-
Strecker, Reinhard:
Construction of medial semigroups.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 25
(1984),
issue 4,
pp. 689-697
-
Sizer, Walter S.:
Representations of group and semigroup actions.
(English).
Czechoslovak Mathematical Journal,
vol. 34
(1984),
issue 1,
pp. 84-91
-
Nguyen Van Vinh:
Representation of semigroups by products of topological spaces with prescribed cardinal functions.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 24
(1983),
issue 2,
pp. 317-323
-
Miller, Ann; Pedersen, F. D.; Sizer, Walter S.:
The semigroup of finite complexes of a group.
(English).
Czechoslovak Mathematical Journal,
vol. 33
(1983),
issue 3,
pp. 337-343
-
Kučera, Luděk:
On the monoids of homomorphisms of semigroups with unity.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 23
(1982),
issue 2,
pp. 369-381
-
Vinárek, Jiří:
Representations of commutative semigroups by products of metric $0$-dimensional spaces.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 23
(1982),
issue 4,
pp. 715-726
-
Vinárek, Jiří:
Representations of countable commutative semigroups by products of weakly homogeneous spaces.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 21
(1980),
issue 2,
pp. 219-229
-
Sizer, Walter S.:
Representations of semigroups of idempotents.
(English).
Czechoslovak Mathematical Journal,
vol. 30
(1980),
issue 3,
pp. 369-375
-
Lau, August:
Finite Abelian semigroups represented into the power set of finite groups.
(English).
Czechoslovak Mathematical Journal,
vol. 29
(1979),
issue 1,
pp. 159-162
-
Vinárek, Jiří:
Isomorphisms of products of weakly homogeneous spaces.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 20
(1979),
issue 4,
pp. 796
-
Trnková, Věra; Koubek, Václav:
Isomorphisms of products of infinite graphs.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 19
(1978),
issue 4,
pp. 639-652
-
Luedeman, John K.; McMorris, F. R.; Sim, Soon Kiong:
Semigroups for which every totally irreducible $S$-system is injective.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 19
(1978),
issue 1,
pp. 27-35
-
Trnková, Věra:
Productive representations of semigroups by pairs of structures.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 18
(1977),
issue 2,
pp. 383-391
-
Trnková, Věra:
Products of topological spaces represent any semigroup (Preliminary communication).
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 16
(1975),
issue 2,
pp. 393-394
-
Trnková, Věra:
Spaces which admit negative powers and all roots (Preliminary communication).
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 15
(1974),
issue 3,
pp. 571-572
-
Abrhan, Imrich:
О максимальных подалгебрах в унарных алгебрах.
(Russian) [Maximal Subalgebras in Unary Algebras].
Matematický časopis,
vol. 24
(1974),
issue 2,
pp. 113-128
-
Lesokhin, M. M.:
Об отделимости подполугрупп характерами.
(Russian) [On the separation of subsemigroups by characters].
Matematický časopis,
vol. 24
(1974),
issue 2,
pp. 129-138
-
Křivka, Pavel:
On representations of monoids as monoids of polynomials.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 13
(1972),
issue 1,
pp. 121-136
-
Tichý, Tomáš; Vinárek, Jiří:
On the algebraic characterization of systems of $1-1$ partial mappings.
(English).
Commentationes Mathematicae Universitatis Carolinae,
vol. 13
(1972),
issue 4,
pp. 711-720