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05C25 Graphs and groups (89 articles)

• Costanzo, David G.; Lewis, Mark L.; Schmidt, Stefano; Tsegaye, Eyob; Udell, Gabe: Characterizing finite groups whose enhanced power graphs have universal vertices. (English). Czechoslovak Mathematical Journal, vol. 74 (2024), issue 2, pp. 637-645
• Aslankarayiğit Uğurlu, Emel; Bouba, El Mehdi; Tekir, Ünsal; Koç, Suat: On wsq-primary ideals. (English). Czechoslovak Mathematical Journal, vol. 73 (2023), issue 2, pp. 415-429
• Ghumashyan, Heghine; Guričan, Jaroslav: Sofic groups are not locally embeddable into finite Moufang loops. (English). Mathematica Bohemica, vol. 147 (2022), issue 1, pp. 11-18
• Nasernejad, Mehrdad; Khashyarmanesh, Kazem; Roberts, Leslie G.; Toledo, Jonathan: The strong persistence property and symbolic strong persistence property. (English). Czechoslovak Mathematical Journal, vol. 72 (2022), issue 1, pp. 209-237
• Shahsavari, Hossein; Khosravi, Behrooz: Characterization by intersection graph of some families of finite nonsimple groups. (English). Czechoslovak Mathematical Journal, vol. 71 (2021), issue 1, pp. 191-209
• Onagh, Bibi N.: Roughness in $G$-graphs. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 61 (2020), issue 2, pp. 147-154
• Jalali, Mitra; Tehranian, Abolfazl; Nikandish, Reza; Rasouli, Hamid: Some classes of perfect strongly annihilating-ideal graphs associated with commutative rings. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 61 (2020), issue 1, pp. 27-34
• Kennedy-Cochran-Patrick, Arthur; Sergeev, Sergeĭ; Berežný, Štefan: A bound for the rank-one transient of inhomogeneous matrix products in special case. (English). Kybernetika, vol. 55 (2019), issue 1, pp. 12-23
• Asboei, Alireza Khalili; Amiri, Seyed Sadegh Salehi: Recognizability of finite groups by Suzuki group. (English). Archivum Mathematicum, vol. 55 (2019), issue 4, pp. 225-228
• Mengesha, Demelash Ashagrie; Vetrík, Tomáš: Resolving sets of directed Cayley graphs for the direct product of cyclic groups. (English). Czechoslovak Mathematical Journal, vol. 69 (2019), issue 3, pp. 621-636
• Liu, Hailin; Lou, Bengong; Ling, Bo: Tetravalent half-arc-transitive graphs of order $p^2q^2$. (English). Czechoslovak Mathematical Journal, vol. 69 (2019), issue 2, pp. 391-401
• Grigor'yan, Alexander; Jimenez, Rolando; Muranov, Yuri: Fundamental groupoids of digraphs and graphs. (English). Czechoslovak Mathematical Journal, vol. 68 (2018), issue 1, pp. 35-65
• Asboei, Alireza K.; Amiri, Seyed S. S.: The small Ree group $^{2}G_{2}(3^{2n+1})$ and related graph. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 59 (2018), issue 3, pp. 271-276
• Bošnjak, Ivica; Madarász, Rozália: Some globally determined classes of graphs. (English). Czechoslovak Mathematical Journal, vol. 68 (2018), issue 3, pp. 633-646
• Mahdavi, Lotf Ali; Talebi, Yahya: Some results on the co-intersection graph of submodules of a module. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 59 (2018), issue 1, pp. 15-24
• Hua, Xiao-Hui; Chen, Li: Valency seven symmetric graphs of order $2pq$. (English). Czechoslovak Mathematical Journal, vol. 68 (2018), issue 3, pp. 581-599
• Atani, S. Ebrahimi; Hesari, S. Dolati Pish; Khoramdel, M.: A graph associated to proper non-small ideals of a commutative ring. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 58 (2017), issue 1, pp. 1-12
• Daugulis, Peteris: A note on another construction of graphs with $4n+6$ vertices and cyclic automorphism group of order $4n$. (English). Archivum Mathematicum, vol. 53 (2017), issue 1, pp. 13-18
• Shahsavari, Hossein; Khosravi, Behrooz: On the intersection graph of a finite group. (English). Czechoslovak Mathematical Journal, vol. 67 (2017), issue 4, pp. 1145-1153
• Ahmad, Uzma; Moeen, Muqadas: The classification of finite groups by using iteration digraphs. (English). Czechoslovak Mathematical Journal, vol. 66 (2016), issue 4, pp. 1103-1117
• Selvakumar, Krishnan; Subajini, Manoharan: Classification of rings with toroidal Jacobson graph. (English). Czechoslovak Mathematical Journal, vol. 66 (2016), issue 2, pp. 307-316
• Ma, Xuanlong: On the diameter of the intersection graph of a finite simple group. (English). Czechoslovak Mathematical Journal, vol. 66 (2016), issue 2, pp. 365-370
• Guo, Song-Tao; Hou, Hailong; Xu, Yong: A note on solvable vertex stabilizers of $s$-transitive graphs of prime valency. (English). Czechoslovak Mathematical Journal, vol. 65 (2015), issue 3, pp. 781-785
• Plaumann, P.; Sabinina, L.; Stuhl, I.: The Cayley graph and the growth of Steiner loops. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 55 (2014), issue 4, pp. 493-498
• Ju, Tengxia; Wu, Meiyun: On iteration digraph and zero-divisor graph of the ring $\mathbb {Z}_n$. (English). Czechoslovak Mathematical Journal, vol. 64 (2014), issue 3, pp. 611-628
• Baez, Karla: Towards a geometric theory for left loops. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 55 (2014), issue 3, pp. 315-323
• Stojadinović, Tanja: Canonical characters on simple graphs. (English). Czechoslovak Mathematical Journal, vol. 63 (2013), issue 1, pp. 107-113
• Guo, Song-Tao; Hua, Xiao-Hui; Li, Yan-Tao: Hexavalent $(G,s)$-transitive graphs. (English). Czechoslovak Mathematical Journal, vol. 63 (2013), issue 4, pp. 923-931
• Babai, Azam; Khosravi, Behrooz: On the composition factors of a group with the same prime graph as $B_{n}(5)$. (English). Czechoslovak Mathematical Journal, vol. 62 (2012), issue 2, pp. 469-486
• Breda d'Azevedo, Antonio; Rodrigues, Ilda Inácio; Fernandes, Maria Elisa: On chirality groups and regular coverings of regular oriented hypermaps. (English). Czechoslovak Mathematical Journal, vol. 61 (2011), issue 4, pp. 1037-1047
• Emtander, Eric; Mohammadi, Fatemeh; Moradi, Somayeh: Some algebraic properties of hypergraphs. (English). Czechoslovak Mathematical Journal, vol. 61 (2011), issue 3, pp. 577-607
• Nasehpour, Peyman: Zero-divisors of content algebras. (English). Archivum Mathematicum, vol. 46 (2010), issue 4, pp. 237-249
• Khosravi, Behrooz: On the prime graphs of the automorphism groups of sporadic simple groups. (English). Archivum Mathematicum, vol. 45 (2009), issue 2, pp. 83-94
• Skowronek-Kaziów, J.: Properties of digraphs connected with some congruence relations. (English). Czechoslovak Mathematical Journal, vol. 59 (2009), issue 1, pp. 39-49
• Somer, Lawrence; Křížek, Michal: On semiregular digraphs of the congruence $x^k\equiv y \pmod n$. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 48 (2007), issue 1, pp. 41-58
• Nebeský, Ladislav: Travel groupoids. (English). Czechoslovak Mathematical Journal, vol. 56 (2006), issue 2, pp. 659-675
• Bretto, Alain; Faisant, Alain: Another way for associating a graph to a group. (English). Mathematica Slovaca, vol. 55 (2005), issue 1, pp. 1-8
• Darafsheh, M. R.; Farjami, Y.; Khademi, M.; Moghaddamfar, A. R.: Some results on the recognizability of the linear groups over the binary field. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 46 (2005), issue 4, pp. 589-600
• Kelarev, A. V.; Quinn, S. J.: A combinatorial property and power graphs of semigroups. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 45 (2004), issue 1, pp. 1-7
• Surowski, David B.: Automorphism groups of certain unstable graphs. (English). Mathematica Slovaca, vol. 53 (2003), issue 3, pp. 215-232
• Breda d'Azevedo, Antonio J.; Nedela, Roman: Chiral hypermaps with few hyperfaces. (English). Mathematica Slovaca, vol. 53 (2003), issue 2, pp. 107-128
• Saenpholphat, Varaporn; Zhang, Ping: Connected resolvability of graphs. (English). Czechoslovak Mathematical Journal, vol. 53 (2003), issue 4, pp. 827-840
• Iranmanesh, A.; Khosravi, B.: A characterization of $C_2(q)$ where $q>5$. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 43 (2002), issue 1, pp. 9-21
• Polat, Norbert: End-faithful spanning trees of countable graphs with prescribed sets of rays. (English). Czechoslovak Mathematical Journal, vol. 51 (2001), issue 1, pp. 45-53
• Marušič, Dragan; Nedela, Roman: Partial line graph operator and half-arc-transitive group actions. (English). Mathematica Slovaca, vol. 51 (2001), issue 3, pp. 241-257
• Jakubík, Ján: Graph automorphisms of semimodular lattices. (English). Mathematica Bohemica, vol. 125 (2000), issue 4, pp. 459-464
• Łuczak, Tomasz: On the maximum automorphism group of self-complementary graphs. (English). Mathematica Slovaca, vol. 50 (2000), issue 1, pp. 17-24
• Marušič, Dragan; Pisanski, Tomaž: The remarkable generalized Petersen graph $G(8,3)$. (English). Mathematica Slovaca, vol. 50 (2000), issue 2, pp. 117-121
• Pondělíček, Bedřich: Chordal intersection graphs of bands. (English). Czechoslovak Mathematical Journal, vol. 49 (1999), issue 2, pp. 225-232
• Jendroľ, Stanislav; Nedela, Roman; Škoviera, Martin: Constructing regular maps and graphs from planar quotients. (English). Mathematica Slovaca, vol. 47 (1997), issue 2, pp. 155-170
• Nedela, Roman: Graphs which are edge-locally $C_n$. (English). Mathematica Slovaca, vol. 47 (1997), issue 4, pp. 381-391
• Voss, Heinz-Juergen: Sachs triangulations, generated by dessins d'enfant, and regular maps. (English). Mathematica Slovaca, vol. 47 (1997), issue 2, pp. 193-210
• Wójcik, Piotr: On automorphisms of digraphs without symmetric cycles. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 37 (1996), issue 3, pp. 457-467
• Li, Weimin: Green's relations on the endomorphism monoid of a graph. (English). Mathematica Slovaca, vol. 45 (1995), issue 4, pp. 335-347
• Youssef, Samy A.; Hulsurkar, S. G.: On connectedness of graphs on direct product of Weyl groups. (English). Archivum Mathematicum, vol. 31 (1995), issue 4, pp. 299-304
• Youssef, Samy A.; Hulsurkar, S. G.: On connectedness of graphs on Weyl groups of type $A\sb n$ ($n\geq 4$). (English). Archivum Mathematicum, vol. 31 (1995), issue 3, pp. 163-170
• Hrušák, M.: Automorphism groups of complements of points. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 35 (1994), issue 2, pp. 23-31
• Zelinka, Bohdan: Representation of undirected graphs by anticommutative conservative groupoids. (English). Mathematica Bohemica, vol. 119 (1994), issue 3, pp. 231-237
• Youssef, Samy A.; Hulsurkar, S. G.: More on the girth of graphs on Weyl groups. (English). Archivum Mathematicum, vol. 29 (1993), issue 1, pp. 19-23
• Nedela, Roman: Locally homogeneous graphs with dense links at vertices. (English). Czechoslovak Mathematical Journal, vol. 42 (1992), issue 3, pp. 515-517
• Vetchý, Vladimír: Metrically regular square of metrically regular bigraphs. II. (English). Archivum Mathematicum, vol. 28 (1992), issue 1, pp. 17-24
• Tomanová, Jana: A note on link graphs. (English). Mathematica Slovaca, vol. 39 (1989), issue 3, pp. 225-231
• Vítek, Milan: Graphs and quasitrivial groupoids. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 27 (1986), issue 1, pp. 3-15
• Trnková, Věra: Simultaneous representations in discrete structures. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 27 (1986), issue 4, pp. 633-649
• Trnková, Věra: Isomorphisms of products of infinite connected graphs. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 25 (1984), issue 2, pp. 303-317
• Velikovich, L. L.: $(2, n)$ -- звёздно транзитивные графы. (Russian) [$(2, n)$-star-transitive graphs]. Časopis pro pěstování matematiky, vol. 108 (1983), issue 2, pp. 137-145
• Zelinka, Bohdan: On double covers of graphs. (English). Mathematica Slovaca, vol. 32 (1982), issue 1, pp. 49-54
• Thomas, Gerhard G.: On permutographs. (English). In: Frolík, Zdeněk (ed.): Proceedings of the 10th Winter School on Abstract Analysis. Circolo Matematico di Palermo, Palermo, 1982. pp. [275]-286
• Zelinka, Bohdan: Graph representations of finite Abelian groups. (English). Czechoslovak Mathematical Journal, vol. 31 (1981), issue 1, pp. 83-86
• Zelinka, Bohdan: Graphs of semigroups. (English). Časopis pro pěstování matematiky, vol. 106 (1981), issue 4, pp. 407-408
• Pondělíček, Bedřich: On the intersection graph of a commutative distributive groupoid. (English). Mathematica Slovaca, vol. 29 (1979), issue 1, pp. 57-62
• Bertholf, Dennis; Walls, Gary: Graphs of finite abelian groups. (English). Czechoslovak Mathematical Journal, vol. 28 (1978), issue 3, pp. 365-368
• Koubek, Václav: Graphs with given subgraphs represent all categories. II. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 19 (1978), issue 2, pp. 249-264
• Trnková, Věra; Koubek, Václav: Isomorphisms of products of infinite graphs. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 19 (1978), issue 4, pp. 639-652
• Dörfler, Willibald: On mapping graphs and permutation graphs. (English). Mathematica Slovaca, vol. 28 (1978), issue 3, pp. 277-288
• Zelinka, Bohdan: Finite planar vertex-transitive graphs of the regularity degree three. (English). Časopis pro pěstování matematiky, vol. 102 (1977), issue 1, pp. 1-9
• Koubek, Václav: Graphs with given subgraphs represent all categories. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 18 (1977), issue 1, pp. 115-127
• Zelinka, Bohdan: Groups and polar graphs. (English). Časopis pro pěstování matematiky, vol. 101 (1976), issue 1, pp. 2-6
• Zelinka, Bohdan: Finite Vertex-Transitive Planar Graphs of the Regularity Degree Four or Five. (English). Matematický časopis, vol. 25 (1975), issue 3, pp. 271-280
• Zelinka, Bohdan: Involutory Pairs of Vertices in Transitive Graphs. (English). Matematický časopis, vol. 25 (1975), issue 3, pp. 221-222
• Zelinka, Bohdan: Quasigroups and Factorisation of Complete Digraphs. (English). Matematický časopis, vol. 23 (1973), issue 4, pp. 333-341
• Jurák, V.: Remark about a construction of some tournaments points of certain projective planes. (English). Acta Universitatis Carolinae. Mathematica et Physica, vol. 14 (1973), issue 2, pp. 17-21
• Dörfler, Willibald: Automorphismen von $X$-Summen von Graphen. (German) [Automorphisms of $X$-sums of graphs]. Czechoslovak Mathematical Journal, vol. 22 (1972), issue 4, pp. 581-589
• Harary, Frank; Palmer, Edgar M.: Correction: “The smallest graph whose group is cyclic”. (English). Czechoslovak Mathematical Journal, vol. 22 (1972), issue 1, pp. 180
• Müller, Vladimír; Nešetřil, Jaroslav; Pelant, Jan: Either tournaments or algebras? (Preliminary communication). (English). Commentationes Mathematicae Universitatis Carolinae, vol. 13 (1972), issue 4, pp. 801-807
• Zelinka, Bohdan: The group of autotopies of a digraph. (English). Czechoslovak Mathematical Journal, vol. 21 (1971), issue 4, pp. 619-624
• Wichs, Tomáš: On minimal semirigid relations. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 12 (1971), issue 2, pp. 359-365
• Zelinka, Bohdan: The Decomposition of a General Graph according to a Given Abelian Group. (English). Matematický časopis, vol. 20 (1970), issue 4, pp. 281-292
• Baranskij, V. A.; Trahtman, A. N.: О подполугрупповых графах. (Russian) [On Subsemigroup Graphs]. Matematický časopis, vol. 20 (1970), issue 2, pp. 135-140