Kepka, Tomáš; Němec, Petr (Pre)order preserving additive homomorphisms of (pre)ordered commutative semigroups into real numbers. I. (English) Zbl 1306.06011 Acta Univ. Carol., Math. Phys. 53, No. 1, 3-32 (2012). Reviewer: Niovi Kehayopulu (Athenai) MSC: 06F05 20M14 20M15 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{P. Němec}, Acta Univ. Carol., Math. Phys. 53, No. 1, 3--32 (2012; Zbl 1306.06011)
Trch, Milan Groupoids and the associative law. VIIB: SH-groupoids and simply generated congruences. (English) Zbl 1260.20085 Acta Univ. Carol., Math. Phys. 52, No. 2, 77-87 (2011). MSC: 20N02 PDFBibTeX XMLCite \textit{M. Trch}, Acta Univ. Carol., Math. Phys. 52, No. 2, 77--87 (2011; Zbl 1260.20085)
Ježek, Jaroslav; Kepka, Tomáš; Němec, Petr Commutative semigroups that are simple over their endomorphism semirings. (English) Zbl 1260.20082 Acta Univ. Carol., Math. Phys. 52, No. 2, 37-50 (2011). MSC: 20M14 16Y60 20M15 08A30 PDFBibTeX XMLCite \textit{J. Ježek} et al., Acta Univ. Carol., Math. Phys. 52, No. 2, 37--50 (2011; Zbl 1260.20082)
Ježek, Jaroslav; Kepka, Tomáš; Němec, Petr One element extensions of commutative semigroups. (English) Zbl 1256.20056 Acta Univ. Carol., Math. Phys. 52, No. 2, 33-35 (2011). MSC: 20M14 20M10 PDFBibTeX XMLCite \textit{J. Ježek} et al., Acta Univ. Carol., Math. Phys. 52, No. 2, 33--35 (2011; Zbl 1256.20056)
Ježek, Jaroslav; Kepka, Tomáš; Němec, Petr Commutative semigroups with almost transitive endomorphism semiring. (English) Zbl 1260.20081 Acta Univ. Carol., Math. Phys. 52, No. 2, 29-32 (2011). MSC: 20M14 16Y60 20M15 PDFBibTeX XMLCite \textit{J. Ježek} et al., Acta Univ. Carol., Math. Phys. 52, No. 2, 29--32 (2011; Zbl 1260.20081)
Stanovský, David Selfdistributive groupoids. (English) Zbl 1257.20065 Acta Univ. Carol., Math. Phys. 52, No. 2, 7-28 (2011). MSC: 20N02 20N05 08B15 PDFBibTeX XMLCite \textit{D. Stanovský}, Acta Univ. Carol., Math. Phys. 52, No. 2, 7--28 (2011; Zbl 1257.20065)
Trch, Milan Groupoids and the associative law. IIIA. (Primitive extensions of SH-groupoids and their semigroup distances). (English) Zbl 1181.20062 Acta Univ. Carol., Math. Phys. 50, No. 1, 73-82 (2009). MSC: 20N02 PDFBibTeX XMLCite \textit{M. Trch}, Acta Univ. Carol., Math. Phys. 50, No. 1, 73--82 (2009; Zbl 1181.20062) Full Text: EuDML
Special issue: Selected papers based on the presentations at the 35th winter school on topology, January 27–February 3, 2007. (English) Zbl 1215.54001 Acta Univ. Carol., Math. Phys. 48, No. 2, 80 p. (2007). MSC: 54-06 18-06 20-06 00B25 PDFBibTeX XML
Lyaskovska, Nadya Constructing subsets of a given packing index in Abelian groups. (English) Zbl 1160.20315 Acta Univ. Carol., Math. Phys. 48, No. 2, 69-80 (2007). MSC: 20K99 52C17 05D05 PDFBibTeX XMLCite \textit{N. Lyaskovska}, Acta Univ. Carol., Math. Phys. 48, No. 2, 69--80 (2007; Zbl 1160.20315) Full Text: arXiv EuDML
Banakh, Taras; Hryniv, Olena Embedding topological semigroups into the hyperspaces over topological groups. (English) Zbl 1155.22300 Acta Univ. Carol., Math. Phys. 48, No. 2, 3-18 (2007). MSC: 22A15 22A05 54B20 20M18 PDFBibTeX XMLCite \textit{T. Banakh} and \textit{O. Hryniv}, Acta Univ. Carol., Math. Phys. 48, No. 2, 3--18 (2007; Zbl 1155.22300) Full Text: arXiv EuDML
Flaška, Václav; Jančařík, Antonín; Kala, Vítězslav; Kepka, Tomás Trees in commutative nil-semigroups of index two. (English) Zbl 1169.20310 Acta Univ. Carol., Math. Phys. 48, No. 1, 81-101 (2007). MSC: 20M14 05C05 20M05 PDFBibTeX XMLCite \textit{V. Flaška} et al., Acta Univ. Carol., Math. Phys. 48, No. 1, 81--101 (2007; Zbl 1169.20310)
Trch, Milan Groupoids and the associative law. VIIA: SH-groupoids of type \((A,B,A)\) and their semigroup distances. (English) Zbl 1153.20049 Acta Univ. Carol., Math. Phys. 48, No. 1, 43-54 (2007). MSC: 20N02 PDFBibTeX XMLCite \textit{M. Trch}, Acta Univ. Carol., Math. Phys. 48, No. 1, 43--54 (2007; Zbl 1153.20049) Full Text: EuDML
Trch, Milan Groupoids and the associative law. VII: Semigroups distance of SH-groupoids. (English) Zbl 1150.20047 Acta Univ. Carol., Math. Phys. 47, No. 1, 57-63 (2006). MSC: 20N02 05B15 PDFBibTeX XMLCite \textit{M. Trch}, Acta Univ. Carol., Math. Phys. 47, No. 1, 57--63 (2006; Zbl 1150.20047) Full Text: EuDML
Ježek, Jaroslav; Kepka, Tomáš Selfdistributive groupoids. D1: Left distributive semigroups. (English) Zbl 1150.20046 Acta Univ. Carol., Math. Phys. 47, No. 1, 15-56 (2006). MSC: 20N02 20M99 08B15 PDFBibTeX XMLCite \textit{J. Ježek} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 47, No. 1, 15--56 (2006; Zbl 1150.20046) Full Text: EuDML
Flaška, Václav; Kepka, Tomáš Commutative zeropotent semigroups. (English) Zbl 1145.20321 Acta Univ. Carol., Math. Phys. 47, No. 1, 3-14 (2006). MSC: 20M14 20M05 PDFBibTeX XMLCite \textit{V. Flaška} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 47, No. 1, 3--14 (2006; Zbl 1145.20321) Full Text: EuDML
Jančařík, Antonín; Kepka, Tomáš; Vítek, Milan Multiplication groups of quasigroups and loops. IV. (English) Zbl 1107.20059 Acta Univ. Carol., Math. Phys. 46, No. 1, 77-100 (2005). MSC: 20N05 PDFBibTeX XMLCite \textit{A. Jančařík} et al., Acta Univ. Carol., Math. Phys. 46, No. 1, 77--100 (2005; Zbl 1107.20059)
El Bashir, Robert; Kepka, Tomáš; Kechlibar, Marian Commutative semigroups with few fully invariant congruences. II. (English) Zbl 1103.20056 Acta Univ. Carol., Math. Phys. 46, No. 1, 65-75 (2005). Reviewer: G. I. Zhitomirskij (Herzliyya) MSC: 20M14 16Y60 08A30 20M50 PDFBibTeX XMLCite \textit{R. El Bashir} et al., Acta Univ. Carol., Math. Phys. 46, No. 1, 65--75 (2005; Zbl 1103.20056) Full Text: EuDML
El Bashir, Robert; Kepka, Tomáš; Kechlibar, Marian Commutative semigroups with few fully invariant congruences. I. (English) Zbl 1103.20055 Acta Univ. Carol., Math. Phys. 46, No. 1, 49-64 (2005). Reviewer: G. I. Zhitomirskij (Herzliyya) MSC: 20M14 16Y60 08A30 20M50 PDFBibTeX XMLCite \textit{R. El Bashir} et al., Acta Univ. Carol., Math. Phys. 46, No. 1, 49--64 (2005; Zbl 1103.20055) Full Text: EuDML
Kepka, T.; Rosendorf, D. Quasigroups which are unions of three proper subquasigroups. (English) Zbl 1076.20063 Acta Univ. Carol., Math. Phys. 45, No. 1, 55-66 (2004). MSC: 20N05 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{D. Rosendorf}, Acta Univ. Carol., Math. Phys. 45, No. 1, 55--66 (2004; Zbl 1076.20063) Full Text: EuDML
Kepka, Tomáš; Příhoda, Pavel; Šťovíček, Jan Unions of subquasigroups. (English) Zbl 1076.20064 Acta Univ. Carol., Math. Phys. 45, No. 1, 43-54 (2004). MSC: 20N05 03E02 PDFBibTeX XMLCite \textit{T. Kepka} et al., Acta Univ. Carol., Math. Phys. 45, No. 1, 43--54 (2004; Zbl 1076.20064) Full Text: EuDML
Kepka, Tomáš; Němec, Petr Selfdistributive groupoids. AI: Non-idempotent left distributive groupoids. (English) Zbl 1080.20060 Acta Univ. Carol., Math. Phys. 44, No. 1, 94 p. (2003). Reviewer: Miklos Csikós (Gödöllő) MSC: 20N02 20N05 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{P. Němec}, Acta Univ. Carol., Math. Phys. 44, No. 1, 94 p. (2003; Zbl 1080.20060) Full Text: EuDML
Kepka, T. Quasigroups of fractions. (English) Zbl 1005.20047 Acta Univ. Carol., Math. Phys. 42, No. 1, 3-81 (2001). Reviewer: Elena Brožíková (Praha) MSC: 20N02 20N05 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 42, No. 1, 3--81 (2001; Zbl 1005.20047) Full Text: EuDML
De Salvo, M. On the partial semi-hypergroups with empty diagonal. (English) Zbl 0962.20054 Acta Univ. Carol., Math. Phys. 40, No. 2, 3-19 (1999). Reviewer: M.Guţan (Aubière) MSC: 20N20 08A55 PDFBibTeX XMLCite \textit{M. De Salvo}, Acta Univ. Carol., Math. Phys. 40, No. 2, 3--19 (1999; Zbl 0962.20054) Full Text: EuDML
Janoš, L. Compactification and linearization of abstract dynamical systems. (English) Zbl 0897.54021 Acta Univ. Carol., Math. Phys. 38, No. 1, 63-70 (1997). Reviewer: T.S.Wu (Cleveland) MSC: 54H20 54H15 47D03 20M20 PDFBibTeX XMLCite \textit{L. Janoš}, Acta Univ. Carol., Math. Phys. 38, No. 1, 63--70 (1997; Zbl 0897.54021) Full Text: EuDML
Kepka, T.; Jančařík, A. Multiplication groups of quasigroups and loops. III. (English) Zbl 0891.20043 Acta Univ. Carol., Math. Phys. 38, No. 1, 53-62 (1997). Reviewer: K.Kozioł (Katowice) MSC: 20N05 20F14 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{A. Jančařík}, Acta Univ. Carol., Math. Phys. 38, No. 1, 53--62 (1997; Zbl 0891.20043) Full Text: EuDML
Drápal, A.; Ježek, J.; Kepka, T. Groupoids and the associative law. IX: Associative triples in some classes of groupoids. (English) Zbl 0889.20042 Acta Univ. Carol., Math. Phys. 38, No. 1, 39-52 (1997). Reviewer: C.Pereira da Silva (Curitiba) MSC: 20N02 PDFBibTeX XMLCite \textit{A. Drápal} et al., Acta Univ. Carol., Math. Phys. 38, No. 1, 39--52 (1997; Zbl 0889.20042) Full Text: EuDML
Drápal, A.; Kepka, T. Groupoids and the associative law. VIII: Diagonally non-associative groupoids. (English) Zbl 0889.20041 Acta Univ. Carol., Math. Phys. 38, No. 1, 23-37 (1997). Reviewer: C.Pereira da Silva (Curitiba) MSC: 20N02 PDFBibTeX XMLCite \textit{A. Drápal} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 38, No. 1, 23--37 (1997; Zbl 0889.20041) Full Text: EuDML
Kepka, T.; Trch, M. Groupoids and the associative law. VI: Szász-Hájek groupoids of type \((a,b,c)\). (English) Zbl 0889.20040 Acta Univ. Carol., Math. Phys. 38, No. 1, 13-22 (1997). Reviewer: C.Pereira da Silva (Curitiba) MSC: 20N02 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{M. Trch}, Acta Univ. Carol., Math. Phys. 38, No. 1, 13--22 (1997; Zbl 0889.20040) Full Text: EuDML
Ježek, Jaroslav; Kepka, Tomáš Groupoids and the associative law. XII: Representable cardinal functions. (English) Zbl 0904.20049 Acta Univ. Carol., Math. Phys. 37, No. 1, 41-62 (1996). Reviewer: C.Pereira da Silva (Curitiba) MSC: 20N02 PDFBibTeX XMLCite \textit{J. Ježek} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 37, No. 1, 41--62 (1996; Zbl 0904.20049) Full Text: EuDML
Ježek, Jaroslav; Kepka, Tomáš Bijective reflexions and coreflexions and commutative unars. (English) Zbl 0899.08005 Acta Univ. Carol., Math. Phys. 37, No. 1, 31-40 (1996). Reviewer: J.R.Isbell (Buffalo) MSC: 08A60 08C05 20M20 20M50 PDFBibTeX XMLCite \textit{J. Ježek} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 37, No. 1, 31--40 (1996; Zbl 0899.08005) Full Text: EuDML
Corsini, Piergiulio; Leoreanu, Violeta About the heart of a hypergroup. (English) Zbl 0904.20052 Acta Univ. Carol., Math. Phys. 37, No. 1, 17-29 (1996). Reviewer: M.Guţan (Aubière) MSC: 20N20 PDFBibTeX XMLCite \textit{P. Corsini} and \textit{V. Leoreanu}, Acta Univ. Carol., Math. Phys. 37, No. 1, 17--29 (1996; Zbl 0904.20052) Full Text: EuDML
Uspenskij, V. V. On the Suslin number of subgroups of products of countable groups. (English) Zbl 0854.20064 Acta Univ. Carol., Math. Phys. 36, No. 2, 85-87 (1995). Reviewer: G.Călugăreanu (Cluj-Napoca) MSC: 20K25 20K27 20K45 22A05 PDFBibTeX XMLCite \textit{V. V. Uspenskij}, Acta Univ. Carol., Math. Phys. 36, No. 2, 85--87 (1995; Zbl 0854.20064) Full Text: EuDML Backlinks: MO
Kepka, Tomáš; Trch, Milan Groupoids and the associative law. V: Szász-Hájek groupoids of type \((a,a,b)\). (English) Zbl 0828.20072 Acta Univ. Carol., Math. Phys. 36, No. 1, 31-44 (1995). Reviewer: C.Pereira da Silva (Curitiba) MSC: 20N02 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{M. Trch}, Acta Univ. Carol., Math. Phys. 36, No. 1, 31--44 (1995; Zbl 0828.20072) Full Text: EuDML
Kepka, Tomáš; Trch, Milan Groupoids and the associative law. III: Szász-Hájek groupoids. (English) Zbl 0828.20071 Acta Univ. Carol., Math. Phys. 36, No. 1, 17-30 (1995). Reviewer: C.Pereira da Silva (Curitiba) MSC: 20N02 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{M. Trch}, Acta Univ. Carol., Math. Phys. 36, No. 1, 17--30 (1995; Zbl 0828.20071) Full Text: EuDML
Hrušák, M. Automorphism groups of complements of points. (English) Zbl 0829.20052 Acta Univ. Carol., Math. Phys. 35, No. 2, 23-31 (1994). Reviewer: V.Koubek (Praha) MSC: 20F29 05C25 54C10 PDFBibTeX XMLCite \textit{M. Hrušák}, Acta Univ. Carol., Math. Phys. 35, No. 2, 23--31 (1994; Zbl 0829.20052) Full Text: EuDML
Kepka, Tomáš; Trch, Milan Groupoids and the associative law. IV: Szász-Hájek groupoids of type \((a,b,a)\). (English) Zbl 0819.20075 Acta Univ. Carol., Math. Phys. 35, No. 1, 31-42 (1994). Reviewer: C.Pereira da Silva (Curitiba) MSC: 20N02 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{M. Trch}, Acta Univ. Carol., Math. Phys. 35, No. 1, 31--42 (1994; Zbl 0819.20075) Full Text: EuDML
Drápal, Aleš; Kepka, Tomáš; Maršálek, Petr Multiplication groups of quasigroups and loops. II. (English) Zbl 0838.20078 Acta Univ. Carol., Math. Phys. 35, No. 1, 9-29 (1994). Reviewer: K.Kozioł (Katowice) MSC: 20N05 PDFBibTeX XMLCite \textit{A. Drápal} et al., Acta Univ. Carol., Math. Phys. 35, No. 1, 9--29 (1994; Zbl 0838.20078) Full Text: EuDML
El Bashir, Robert A new proof of Prüfer’s theorem. (English) Zbl 0925.20063 Acta Univ. Carol., Math. Phys. 34, No. 1, 101-104 (1993). MSC: 20K10 20K25 PDFBibTeX XMLCite \textit{R. El Bashir}, Acta Univ. Carol., Math. Phys. 34, No. 1, 101--104 (1993; Zbl 0925.20063) Full Text: EuDML
Drápal, Aleš; Kepka, Tomáš Multiplication groups of quasigroups and loops. I. (English) Zbl 0817.20069 Acta Univ. Carol., Math. Phys. 34, No. 1, 85-99 (1993). Reviewer: K.Kozioł (Katowice) MSC: 20N05 PDFBibTeX XMLCite \textit{A. Drápal} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 34, No. 1, 85--99 (1993; Zbl 0817.20069) Full Text: EuDML
Kepka, Tomáš; Trch, Milan Groupoids and the associative law. II: Groupoids with small semigroup distance. (English) Zbl 0809.20056 Acta Univ. Carol., Math. Phys. 34, No. 1, 67-83 (1993). Reviewer: C.Pereira da Silva (Curitiba) MSC: 20N02 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{M. Trch}, Acta Univ. Carol., Math. Phys. 34, No. 1, 67--83 (1993; Zbl 0809.20056) Full Text: EuDML
Kepka, Tomáš; Trch, Milan Groupoids and the associative law. I: Associative triples. (English) Zbl 0791.20084 Acta Univ. Carol., Math. Phys. 33, No. 1, 69-86 (1992). Reviewer: C.Pereira da Silva (Curitiba) MSC: 20N02 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{M. Trch}, Acta Univ. Carol., Math. Phys. 33, No. 1, 69--86 (1992; Zbl 0791.20084) Full Text: EuDML
Ježek, Jaroslav; Kepka, Tomáš Notes on the number of associative triples. (English) Zbl 0786.20042 Acta Univ. Carol., Math. Phys. 31, No. 1, 15-19 (1990). Reviewer: C.Pereira da Silva (Curitiba) MSC: 20N05 PDFBibTeX XMLCite \textit{J. Ježek} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 31, No. 1, 15--19 (1990; Zbl 0786.20042) Full Text: EuDML
Kepka, Tomáš; Němec, Petr Trimedial quasigroups and generalized modules. I. (English) Zbl 0790.20088 Acta Univ. Carol., Math. Phys. 31, No. 1, 3-14 (1990). Reviewer: M.Csikós (Gödöllö) MSC: 20N05 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{P. Němec}, Acta Univ. Carol., Math. Phys. 31, No. 1, 3--14 (1990; Zbl 0790.20088) Full Text: EuDML
Kepka, T.; Zejnullahu, A. Finitely generated left distributive semigroups. (English) Zbl 0705.20056 Acta Univ. Carol., Math. Phys. 30, No. 1, 33-36 (1989). Reviewer: T.J.Harju MSC: 20M10 20M05 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{A. Zejnullahu}, Acta Univ. Carol., Math. Phys. 30, No. 1, 33--36 (1989; Zbl 0705.20056) Full Text: EuDML
Zejnullahu, A. Free left distributive semigroups. (English) Zbl 0705.20055 Acta Univ. Carol., Math. Phys. 30, No. 1, 29-32 (1989). Reviewer: T.J.Harju MSC: 20M10 20M05 PDFBibTeX XMLCite \textit{A. Zejnullahu}, Acta Univ. Carol., Math. Phys. 30, No. 1, 29--32 (1989; Zbl 0705.20055) Full Text: EuDML
Zejnullahu, A. Splitting left distributive semigroups. (English) Zbl 0705.20054 Acta Univ. Carol., Math. Phys. 30, No. 1, 23-27 (1989). Reviewer: T.J.Harju MSC: 20M10 PDFBibTeX XMLCite \textit{A. Zejnullahu}, Acta Univ. Carol., Math. Phys. 30, No. 1, 23--27 (1989; Zbl 0705.20054) Full Text: EuDML
Kepka, T. Quasigroups having at most three inner mappings. (English) Zbl 0702.20053 Acta Univ. Carol., Math. Phys. 30, No. 1, 3-11 (1989). Reviewer: C.Pereira da Silva MSC: 20N05 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 30, No. 1, 3--11 (1989; Zbl 0702.20053) Full Text: EuDML
Bican, L.; Drápal, A.; Kepka, T. Cancellative relations and matrices. (English) Zbl 0661.20050 Acta Univ. Carol., Math. Phys. 28, No. 1, 21-31 (1987). Reviewer: W.A.Dudek MSC: 20N15 16S50 15A30 PDFBibTeX XMLCite \textit{L. Bican} et al., Acta Univ. Carol., Math. Phys. 28, No. 1, 21--31 (1987; Zbl 0661.20050) Full Text: EuDML
Konguetsof, L.; Vougiouklis, Th.; Kessoglides, M.; Spartalis, St. On cyclic hypergroups with period. (English) Zbl 0658.20045 Acta Univ. Carol., Math. Phys. 28, No. 1, 3-7 (1987). MSC: 20N99 PDFBibTeX XMLCite \textit{L. Konguetsof} et al., Acta Univ. Carol., Math. Phys. 28, No. 1, 3--7 (1987; Zbl 0658.20045) Full Text: EuDML
Vougiouklis, Th.; Konguetsof, L. P-hypergroupes. (French) Zbl 0658.20044 Acta Univ. Carol., Math. Phys. 28, No. 1, 15-20 (1987). MSC: 20N99 20M99 PDFBibTeX XMLCite \textit{Th. Vougiouklis} and \textit{L. Konguetsof}, Acta Univ. Carol., Math. Phys. 28, No. 1, 15--20 (1987; Zbl 0658.20044) Full Text: EuDML
Freni, D. Sur la théorie de la dimension dans les hypergroupes. (On the dimension theory in hypergroups). (French) Zbl 0619.20051 Acta Univ. Carol., Math. Phys. 27, No. 2, 67-80 (1986). Reviewer: M. Gionfriddo MSC: 20N99 PDFBibTeX XMLCite \textit{D. Freni}, Acta Univ. Carol., Math. Phys. 27, No. 2, 67--80 (1986; Zbl 0619.20051) Full Text: EuDML
Vítek, Milan Graphs and quasitrivial groupoids. (English) Zbl 0619.05046 Acta Univ. Carol., Math. Phys. 27, No. 1, 3-15 (1986). Reviewer: V.Havel MSC: 05C99 20L05 PDFBibTeX XMLCite \textit{M. Vítek}, Acta Univ. Carol., Math. Phys. 27, No. 1, 3--15 (1986; Zbl 0619.05046) Full Text: EuDML
Kepka, T.; Niemenmaa, M. On splitting k-systems. (English) Zbl 0608.20054 Acta Univ. Carol., Math. Phys. 27, No. 2, 3-10 (1986). Reviewer: J.Ježek MSC: 20N99 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{M. Niemenmaa}, Acta Univ. Carol., Math. Phys. 27, No. 2, 3--10 (1986; Zbl 0608.20054) Full Text: EuDML
Drápal, A.; Kepka, T. Exchangeable partial groupoids. II. (English) Zbl 0608.20051 Acta Univ. Carol., Math. Phys. 26, No. 1, 3-9 (1985). Reviewer: E.B.Katsov MSC: 20N05 05B15 PDFBibTeX XMLCite \textit{A. Drápal} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 26, No. 1, 3--9 (1985; Zbl 0608.20051) Full Text: EuDML
Kepka, T. Hamiltonian quasimodules and trimedial quasigroups. (English) Zbl 0595.20071 Acta Univ. Carol., Math. Phys. 26, No. 1, 11-20 (1985). Reviewer: C.Pereira da Silva MSC: 20N05 16D80 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 26, No. 1, 11--20 (1985; Zbl 0595.20071) Full Text: EuDML
Bečvář, J. N-pure-high subgroups of Abelian groups. (English) Zbl 0594.20050 Acta Univ. Carol., Math. Phys. 26, No. 1, 21-33 (1985). Reviewer: P.Schultz MSC: 20K21 20K27 PDFBibTeX XMLCite \textit{J. Bečvář}, Acta Univ. Carol., Math. Phys. 26, No. 1, 21--33 (1985; Zbl 0594.20050) Full Text: EuDML
Kepka, T. Varieties of left distributive semigroups. (English) Zbl 0589.20037 Acta Univ. Carol., Math. Phys. 25, No. 1, 3-18 (1984). MSC: 20M07 20M05 20M10 20M15 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 25, No. 1, 3--18 (1984; Zbl 0589.20037) Full Text: EuDML
Tallini, Giuseppe Geometric hyperquasigroups and line spaces. (English) Zbl 0566.51016 Acta Univ. Carol., Math. Phys. 25, No. 1, 69-73 (1984). Reviewer: P.Wilker MSC: 51E30 51E20 20N99 PDFBibTeX XMLCite \textit{G. Tallini}, Acta Univ. Carol., Math. Phys. 25, No. 1, 69--73 (1984; Zbl 0566.51016) Full Text: EuDML
Okniński, Jan Finiteness conditions for semigroup rings. (English) Zbl 0551.20051 Acta Univ. Carol., Math. Phys. 25, No. 1, 29-32 (1984). MSC: 20M25 PDFBibTeX XMLCite \textit{J. Okniński}, Acta Univ. Carol., Math. Phys. 25, No. 1, 29--32 (1984; Zbl 0551.20051) Full Text: EuDML
Smith, J. D. H. Two enumeration principles for free algebras. (English) Zbl 0547.08008 Acta Univ. Carol., Math. Phys. 25, No. 1, 53-58 (1984). Reviewer: Jaroslav Ježek (Praha) MSC: 08B20 20N05 PDFBibTeX XMLCite \textit{J. D. H. Smith}, Acta Univ. Carol., Math. Phys. 25, No. 1, 53--58 (1984; Zbl 0547.08008) Full Text: EuDML
Sharma, B. L. Classification of Bol loops of order 18. (English) Zbl 0545.20061 Acta Univ. Carol., Math. Phys. 25, No. 1, 37-44 (1984). Reviewer: R.P.Burn MSC: 20N05 PDFBibTeX XMLCite \textit{B. L. Sharma}, Acta Univ. Carol., Math. Phys. 25, No. 1, 37--44 (1984; Zbl 0545.20061) Full Text: EuDML
Solarin, A. R. T.; Sharma, B. L. Some examples of Bol loops. (English) Zbl 0545.20060 Acta Univ. Carol., Math. Phys. 25, No. 1, 59-68 (1984). Reviewer: R.Artzy MSC: 20N05 PDFBibTeX XMLCite \textit{A. R. T. Solarin} and \textit{B. L. Sharma}, Acta Univ. Carol., Math. Phys. 25, No. 1, 59--68 (1984; Zbl 0545.20060) Full Text: EuDML
Ramamurthi, V. S. On Bol loops of order 4k. (English) Zbl 0545.20059 Acta Univ. Carol., Math. Phys. 25, No. 1, 33-35 (1984). Reviewer: R.P.Burn MSC: 20N05 PDFBibTeX XMLCite \textit{V. S. Ramamurthi}, Acta Univ. Carol., Math. Phys. 25, No. 1, 33--35 (1984; Zbl 0545.20059) Full Text: EuDML
Comer, Stephen D. Constructions of color schemes. (English) Zbl 0532.20042 Acta Univ. Carol., Math. Phys. 24, No. 2, 39-48 (1983). MSC: 20N99 08A02 05B30 PDFBibTeX XMLCite \textit{S. D. Comer}, Acta Univ. Carol., Math. Phys. 24, No. 2, 39--48 (1983; Zbl 0532.20042) Full Text: EuDML
Birkenmeier, Gary F. Exponentiation without associativity. (English) Zbl 0528.20041 Acta Univ. Carol., Math. Phys. 24, No. 2, 3-7 (1983). MSC: 20L05 PDFBibTeX XMLCite \textit{G. F. Birkenmeier}, Acta Univ. Carol., Math. Phys. 24, No. 2, 3--7 (1983; Zbl 0528.20041) Full Text: EuDML
Corsini, P. Feebly canonical and 1-hypergroups. (English) Zbl 0527.20054 Acta Univ. Carol., Math. Phys. 24, No. 2, 49-56 (1983). MSC: 20N99 PDFBibTeX XMLCite \textit{P. Corsini}, Acta Univ. Carol., Math. Phys. 24, No. 2, 49--56 (1983; Zbl 0527.20054) Full Text: EuDML
de Bodt, Ann; Satyanarayana, M. On semigroups admitting ring structure. III. (English) Zbl 0525.20055 Acta Univ. Carol., Math. Phys. 24, No. 2, 17-22 (1983). MSC: 20M25 20M05 PDFBibTeX XMLCite \textit{A. de Bodt} and \textit{M. Satyanarayana}, Acta Univ. Carol., Math. Phys. 24, No. 2, 17--22 (1983; Zbl 0525.20055) Full Text: EuDML
Kepka, T. One-element extensions of distributive groupoids. (English) Zbl 0525.08001 Acta Univ. Carol., Math. Phys. 24, No. 2, 73-77 (1983). MSC: 08A05 20N99 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 24, No. 2, 73--77 (1983; Zbl 0525.08001) Full Text: EuDML
Drapal, A.; Kepka, T. Exchangeable partial groupoids. I. (English) Zbl 0524.20048 Acta Univ. Carol., Math. Phys. 24, No. 2, 57-72 (1983). MSC: 20N05 PDFBibTeX XMLCite \textit{A. Drapal} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 24, No. 2, 57--72 (1983; Zbl 0524.20048) Full Text: EuDML
Kepka, T. Notes on left distributive groupoids. (English) Zbl 0517.20048 Acta Univ. Carol., Math. Phys. 22, No. 2, 23-37 (1981). MSC: 20N05 08A05 08A30 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 22, No. 2, 23--37 (1981; Zbl 0517.20048) Full Text: EuDML
Kepka, T. Quasitrivial groupoids and balanced identities. (English) Zbl 0516.20033 Acta Univ. Carol., Math. Phys. 22, No. 2, 49-64 (1981). MSC: 20L05 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 22, No. 2, 49--64 (1981; Zbl 0516.20033) Full Text: EuDML
Kepka, T. Notes on associative triples of elements in commutative groupoids. (English) Zbl 0515.20053 Acta Univ. Carol., Math. Phys. 22, No. 2, 39-47 (1981). MSC: 20N05 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 22, No. 2, 39--47 (1981; Zbl 0515.20053) Full Text: EuDML
Vougiouklis, T. Cyclicity in a special class of hypergroups. (English) Zbl 0495.20042 Acta Univ. Carol., Math. Phys. 22, No. 1, 3-6 (1981). MSC: 20N99 PDFBibTeX XMLCite \textit{T. Vougiouklis}, Acta Univ. Carol., Math. Phys. 22, No. 1, 3--6 (1981; Zbl 0495.20042) Full Text: EuDML
Vougiouklis, T. The set of hypergroups with operators which are constructed from a set with two elements. (English) Zbl 0493.20052 Acta Univ. Carol., Math. Phys. 22, No. 1, 7-10 (1981). MSC: 20N99 PDFBibTeX XMLCite \textit{T. Vougiouklis}, Acta Univ. Carol., Math. Phys. 22, No. 1, 7--10 (1981; Zbl 0493.20052) Full Text: EuDML
Kepka, T. On a class of subdirectly irreducible groupoids. (English) Zbl 0478.08005 Acta Univ. Carol., Math. Phys. 22, No. 1, 17-24 (1981). MSC: 08A30 20N99 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 22, No. 1, 17--24 (1981; Zbl 0478.08005) Full Text: EuDML
Drbohlav, K. Remark on tolerance algebras. (English) Zbl 0478.08004 Acta Univ. Carol., Math. Phys. 22, No. 1, 11-16 (1981). MSC: 08A30 08B20 08B25 08A05 20L05 PDFBibTeX XMLCite \textit{K. Drbohlav}, Acta Univ. Carol., Math. Phys. 22, No. 1, 11--16 (1981; Zbl 0478.08004) Full Text: EuDML
Kepka, Tomáš; Němec, Petr Quasigroups whose regular mappings are automorphisms. (English) Zbl 0417.20059 Acta Univ. Carol., Math. Phys. 20, 61-71 (1979). Reviewer: L. M. Gluskin MSC: 20N05 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{P. Němec}, Acta Univ. Carol., Math. Phys. 20, No. 1, 61--71 (1979; Zbl 0417.20059) Full Text: EuDML
Kepka, T. Medial division groupoids. (English) Zbl 0417.20058 Acta Univ. Carol., Math. Phys. 20, 41-60 (1979). MSC: 20N05 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 20, No. 1, 41--60 (1979; Zbl 0417.20058) Full Text: EuDML
Kepka, T. Commutative distributive groupoids. (English) Zbl 0391.20055 Acta Univ. Carol., Math. Phys. 19, No. 2, 45-58 (1978). MSC: 20N99 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 19, No. 2, 45--58 (1978; Zbl 0391.20055) Full Text: EuDML
Jezek, J.; Kepka, T. Quasitrivial and nearly quasitrivial distributive groupoids and semigroups. (English) Zbl 0391.20054 Acta Univ. Carol., Math. Phys. 19, No. 2, 25-44 (1978). MSC: 20N99 20M10 PDFBibTeX XMLCite \textit{J. Jezek} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 19, No. 2, 25--44 (1978; Zbl 0391.20054) Full Text: EuDML
Kepka, T. A note on simple quasigroups. (English) Zbl 0383.20058 Acta Univ. Carol., Math. Phys. 19, No. 2, 59-60 (1978). MSC: 20N05 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 19, No. 2, 59--60 (1978; Zbl 0383.20058) Full Text: EuDML
Kepka, T. A note on WA-quasigroups. (English) Zbl 0382.20057 Acta Univ. Carol., Math. Phys. 19, No. 2, 61-62 (1978). MSC: 20N05 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 19, No. 2, 61--62 (1978; Zbl 0382.20057) Full Text: EuDML
Jezek, J.; Kepka, T.; Nemec, P. The category of totally symmetric quasigroups is binding. (English) Zbl 0382.18007 Acta Univ. Carol., Math. Phys. 19, No. 2, 63-64 (1978). MSC: 18B15 20N05 20M50 PDFBibTeX XMLCite \textit{J. Jezek} et al., Acta Univ. Carol., Math. Phys. 19, No. 2, 63--64 (1978; Zbl 0382.18007) Full Text: EuDML
Kepka, T.; Nemec, P. Unipotent quasigroups. (English) Zbl 0403.20048 Acta Univ. Carol., Math. Phys. 18, No. 2, 13-21 (1977). MSC: 20N05 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{P. Nemec}, Acta Univ. Carol., Math. Phys. 18, No. 2, 13--21 (1977; Zbl 0403.20048) Full Text: EuDML
Ferst, P.; Slacalek, P. On autogenerating systems. (English) Zbl 0398.20078 Acta Univ. Carol., Math. Phys. 18, No. 2, 35-41 (1977). MSC: 20M20 20M05 PDFBibTeX XMLCite \textit{P. Ferst} and \textit{P. Slacalek}, Acta Univ. Carol., Math. Phys. 18, No. 2, 35--41 (1977; Zbl 0398.20078) Full Text: EuDML
Jezek, J.; Kepka, T. Free commutative idempotent Abelian groupoids and quasigroups. (English) Zbl 0394.20058 Acta Univ. Carol., Math. Phys. 17, No. 2, 13-19 (1976). MSC: 20N15 20N05 PDFBibTeX XMLCite \textit{J. Jezek} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 17, No. 2, 13--19 (1976; Zbl 0394.20058) Full Text: EuDML
Jezek, J.; Kepka, T. Extensive varieties. (English) Zbl 0325.08003 Acta Univ. Carol., Math. Phys. 16, No. 2, 79-87 (1975). MSC: 08B99 20M10 20N05 PDFBibTeX XMLCite \textit{J. Jezek} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 16, No. 2, 79--87 (1975; Zbl 0325.08003) Full Text: EuDML
Kepka, T. Normal congruence relations on division groupoids. (English) Zbl 0319.20066 Acta Univ. Carol., Math. Phys. 16, No. 2, 89-95 (1975). MSC: 20L05 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 16, No. 2, 89--95 (1975; Zbl 0319.20066) Full Text: EuDML
Kepka, T. \(\Lambda\), \(R\)-transitive groupoids. (English) Zbl 0319.20065 Acta Univ. Carol., Math. Phys. 16, No. 2, 71-77 (1975). MSC: 20L05 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 16, No. 2, 71--77 (1975; Zbl 0319.20065) Full Text: EuDML
Stach, K. Einige Bemerkungen zur Verzweigung des Punktes durch einen Komplex von Transformationen. (German) Zbl 0292.50006 Acta Univ. Carol., Math. Phys. 13(1972), No. 2, 53-59 (1973). MSC: 51N25 51A25 20M20 PDFBibTeX XMLCite \textit{K. Stach}, Acta Univ. Carol., Math. Phys. 13, No. 2, 53--59 (1973; Zbl 0292.50006) Full Text: EuDML
Kepka, T.; Nemec, P. T-quasigroups. II. (English) Zbl 0254.20055 Acta Univ. Carol., Math. Phys. 12(1971), No. 2, 31-49 (1972). MSC: 20N05 PDFBibTeX XMLCite \textit{T. Kepka} and \textit{P. Nemec}, Acta Univ. Carol., Math. Phys. 12, No. 2, 31--49 (1972; Zbl 0254.20055) Full Text: EuDML
Nemec, P.; Kepka, T. T-quasigroups. I. (English) Zbl 0254.20054 Acta Univ. Carol., Math. Phys. 12(1971), No. 1, 39-49 (1972). MSC: 20N05 PDFBibTeX XMLCite \textit{P. Nemec} and \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 12, No. 1, 39--49 (1972; Zbl 0254.20054) Full Text: EuDML
Kepka, T. Regular mappings of groupoids. (English) Zbl 0254.20053 Acta Univ. Carol., Math. Phys. 12(1971), No. 1, 25-37 (1972). MSC: 20N05 PDFBibTeX XMLCite \textit{T. Kepka}, Acta Univ. Carol., Math. Phys. 12, No. 1, 25--37 (1972; Zbl 0254.20053) Full Text: EuDML