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Title Perfect-matching covers of cubic graphs with colouring defect 3 Author info Ján Karabáš ... [et al.] Author Karabáš Ján 1977- (25%) UMBFP05 - Katedra informatiky
Co-authors Máčajová Edita (25%)
Nedela Roman 1960- (25%)
Another authors Škoviera Martin (Author) (25%)
Source document Proceedings of the 12th European Conference on Combinatorics, Graph Theory and Applications : EUROCOMB’23. Pp. 639-646. - Brno : Masarykova univerzita v Brně, 2023 ; European Conference on Combinatorics, Graph Theory and Applications medzinárodná konferencia Keywords grafy - charts - graphs kubické grafy - cubic charts teória grafov - graph theory Form. Descr. príspevky v zborníku - proceedings papers Language English Country Czech Republic URL Link na plný text Public work category AFC No. of Archival Copy 53352 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ 
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Title Berge covers of cubic graphs with colouring defect 3 Author info Martin Škoviera ... [et al.] Author Škoviera Martin (25%)
Co-authors Karabáš Ján 1977- (25%) UMBFP05 - Katedra informatiky
Máčajová Edita (25%)
Nedela Roman 1960- (25%)
Source document BGTC 2023 : Belgian graph theory conference on structure and algorithms. Pp. 16. - Belgicko : Ghent University, 2023 ; Belgian Graph Theory Conference on Structure and Algorithms konferencia Keywords kubické grafy - cubic charts grafy - charts - graphs teória grafov - graph theory Form. Descr. abstrakty - abstracts Language English Country Belgium Public work category GII No. of Archival Copy 53509 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ article
Title Girth, oddness, and colouring defect of snarks Author info Ján Karabáš, Edita Máčajová ... [et al.] Author Karabáš Ján 1977- (25%) UMBFP05 - Katedra informatiky
Co-authors Máčajová Edita (25%)
Nedela Roman 1960- (25%)
Škoviera Martin (25%)
Source document Discrete Mathematics. Vol. 345, no. 11 (2022), pp. [1-10]. - Amsterdam : Elsevier B.V., 2022 Keywords snark grafy - charts - graphs Form. Descr. články - journal articles Language English Country Netherlands URL Link na plný text Public work category ADM No. of Archival Copy 52279 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article
Title Perfect matching index of cubic graphs with defect 3 Author info Ján Karabáš ... [et al.] Author Karabáš Ján 1977- (25%)
Co-authors Máčajová Edita (25%)
Nedela Roman 1960- (25%)
Škoviera Martin (25%)
Source document Booklet of abstracts for the 56th Czech-Slovak Conference on Graph Theory. Pp. 37. - Bratislava : Slovenská technická univerzita, 2021 ; Czech and Slovak Conference on Graph Theory 2021 konferencia Keywords grafy - charts - graphs kubické grafy - cubic charts Form. Descr. abstrakty - abstracts Language English Country Slovak Republic URL Link na zdrojový dokument Public work category AFH No. of Archival Copy 12483 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ article
Title Cubic graphs of defect 3 Author info Ján Karabáš ... [et al.] Author Karabáš Ján 1977- (25%)
Co-authors Máčajová Edita (25%)
Nedela Roman 1960- (25%)
Škoviera Martin (25%)
Source document Booklet of abstracts for the 56th Czech-Slovak Conference on Graph Theory. Pp. 38. - Bratislava : Slovenská technická univerzita, 2021 ; Czech and Slovak Conference on Graph Theory 2021 konferencia Keywords grafy - charts - graphs kubické grafy - cubic charts Form. Descr. abstrakty - abstracts Language English Country Slovak Republic URL Link na zdrojový dokument Public work category AFH No. of Archival Copy 12543 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ article
Title Girth, oddness, and colouring defect of snarks Author info Ján Karabáš ... [et al.] Author Karabáš Ján 1977- (25%)
Co-authors Máčajová Edita (25%)
Nedela Roman 1960- (25%)
Škoviera Martin (25%)
Source document Booklet of abstracts for the 56th Czech-Slovak Conference on Graph Theory. Pp. 32. - Bratislava : Slovenská technická univerzita, 2021 ; Czech and Slovak Conference on Graph Theory 2021 konferencia Keywords voľne žijúce živočíchy - wild animals hady sfarbenie živočíchov Form. Descr. abstrakty - abstracts Language English Country Slovak Republic URL Link na zdrojový dokument Public work category AFH No. of Archival Copy 12477 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ article
Title Classification of finite group actions on orientable surfaces Author info Ján Karabáš, Roman Nedela, Mária Skyvová Author Karabáš Ján 1977- (34%)
Co-authors Nedela Roman 1960- (33%)
Skyvová Mária (33%)
Source document Booklet of abstracts for the 56th Czech-Slovak Conference on Graph Theory. Pp. 42. - Bratislava : Slovenská technická univerzita, 2021 ; Czech and Slovak Conference on Graph Theory 2021 konferencia Keywords algebra - algebra Form. Descr. abstrakty - abstracts Language English Country Slovak Republic URL Link na zdrojový dokument Public work category AFH No. of Archival Copy 12509 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ article
Title On a representation of the automorphism group of a graph in a unimodular group Author info István Estélyi ... [et al.] Author Estélyi István (5%)
Co-authors Karabáš Ján 1977- (40%) UMBFP05 - Katedra informatiky
Nedela Roman 1960- (50%)
Mednykh Alexander 1953- (5%)
Source document Discrete Mathematics. Vol. 344, no. 12 (2021), pp. [1-4]. - Amsterdam : Elsevier B.V., 2021 Keywords matematika - mathematics grafy - charts - graphs Form. Descr. články Language English Country Netherlands Annotation We investigate a representation of the automorphism group of a connected graph X in the group of unimodular matrices U(β) of dimension β, where β is the Betti number of graph X. We classify the graphs for which the automorphism group does not embed into U(β). It follows that if X has no pendant vertices and X is not a simple cycle, then the representation is faithful and Aut X acts faithfully on H_1(X,Z). The latter statement can be viewed as a discrete analogue of a classical Hurwitz’s theorem on Riemann surfaces of genera greater than one. URL Link na plný text Link do databázy WoS Public work category ADM No. of Archival Copy 50763 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika article
Title On discrete versions of two Accola´s theorems about automorphism groups of Riemann surfaces Author info Maxim Limonov, Roman Nedela, Alexander Mednykh Author Limonov Maksim (33%)
Co-authors Nedela Roman 1960- (34%) UMBFP05 - Katedra informatiky
Mednykh Alexander 1953- (33%)
Source document Analysis and Mathematical Physics. Vol. 7, no. 3 (2017), pp. 233-243. - Cham : Springer Nature Switzerland AG, 2017 Keywords Riemanove plochy - Riemann surfaces grafy - charts - graphs automorphism groups hyperelliptic graphs hyperelliptic involutions harmonic maps Language English Country Switzerland systematics 51 Annotation In this paper we give a few discrete versions of Robert Accola’s results on Riemann surfaces with automorphism groups admitting partitions. As a consequence, we establish a condition for γ-hyperelliptic involution on a graph to be unique. Also we construct an infinite family of graphs with more than one γ-hyperelliptic involution. Public work category ADC No. of Archival Copy 41751 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
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Title Quadrangle groups inclusions Author info António Breda d’Azevedo... [et al.] Author Breda d'Azevedo Antonio (10%)
Co-authors Catalano Domenico A. (10%)
Karabáš Ján 1977- (40%) UMBFP05 - Katedra informatiky
Nedela Roman 1960- (40%) UMBFP05 - Katedra informatiky
Source document Beiträge zur Algebra und Geometrie. Vol. 58, no. 2 (2017), pp. 369-394. - Heidelberg : Springer-Verlag, 2017 Keywords Fuchsian groups Riemanove plochy - Riemann surfaces triangle group dessin d’enfant generalized quadrangle groups Language English Country Germany systematics 51 Annotation © 2016, The Managing Editors. In this paper we generalise Singerman’s results on triangle group inclusions to the broader class of generalised quadrangle groups, that is, Fuchsian groups with signature of genus 0 and generated by three or four elliptic generators. For any possible inclusion P < Q we also give the number of non-conjugate subgroups of Q isomorphic to P. Public work category ADM No. of Archival Copy 40854 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised