Search results
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 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 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 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 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 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 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 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 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 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 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