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11.
Graph classes : from practice to theory
Martin Milanič, 2015, published scientific conference contribution abstract (invited lecture)

Keywords: uporaba teorije grafov, razred grafov, pragoven graf, problem nahrbtnika, application of graph theory, graph class, threshold graph, knapsack problem
Published in RUP: 08.08.2016; Views: 2460; Downloads: 18
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12.
Counterexamples to three conjectures on equistable graphs
Martin Milanič, Nicolas Trotignon, 2015, published scientific conference contribution abstract

Keywords: ekvistabilen graf, Orlinova domneva, protiprimer, equistable graphs, Orlin's conjecture, counterexample
Published in RUP: 08.08.2016; Views: 2560; Downloads: 10
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13.
14.
6-decomposition of snarks
Ján Karabáš, Edita Máčajová, Roman Nedela, 2013, original scientific article

Keywords: dekompozicije, graf, barvanje, decompositions, graphs, coloring
Published in RUP: 15.10.2015; Views: 2837; Downloads: 103
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15.
16.
Paleyevi grafi in zemljevidi : zaključna naloga
Sanja Vasilić, 2014, undergraduate thesis

Keywords: grafi, krepko regularni grafi, Paleyev graf, zemljevidi, Paleyev zemljevid
Published in RUP: 10.07.2015; Views: 3257; Downloads: 30
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17.
Uporaba simetrijskih grafov pri konveksnih poliedrih
Jurij Kovič, 2013, doctoral dissertation

Abstract: Grafe praporov in simetrijske grafe, ki so jih odkrili okrog leta 1980, so doslej uporabljali predvsem za klasifikacijo zemljevidov - to je grafov, celično vloženih v kompaktne ploskve. Namen te disertacije je prikazati nekaj razširitev njihove uporabe. V prvem delu disertacije uporabimo simetrijske grafe pri klasifikaciji poliedrov z regularnimi poligonskimi ali zvezdastimi lici. Podamo tudi karakterizacijo teh poliedrov z minimalnim številom parametrov. V drugem delu disertacije na podoben način klasificiramo molekule,sestavljene iz pravilnih šestkotniških gradnikov, pri čemer upoštevamo tudi njihove točkovne grupe. V tretjem delu disertacije pojem simetrijskih grafov razširimo na hiperzemljevide in geometrijske konfiguracije, nazadnje pa tudi na sferne poliedre in sferne molekule.
Keywords: polieder, graf praporov, simetrijski graf, simetrijska grupa
Published in RUP: 15.10.2013; Views: 2921; Downloads: 56
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18.
The exact weighted independent set problem in perfect graphs and related classes
Martin Milanič, Jérôme Monnot, 2009, published scientific conference contribution

Abstract: The exact weighted independent set (EWIS) problem consists in determining whether a given vertex-weighted graph contains an independent set of given weight. This problem is a generalization of two well-known problems, the NP-complete subset sum problem and the strongly NP-hard maximum weight independent set (MWIS) problem. Since the MWIS problem is polynomially solvable for some special graph classes, it is interesting to determine the complexity of this more general EWIS problem for such graph classes. We focus on the class of perfect graphs, which is one of the most general graph classes where the MWIS problem can be solved in polynomial time. It turns out that for certain subclasses of perfect graphs, the EWIS problem is solvable in pseudopolynomial time, while on some others it remains strongly NP-complete.In particular, we show that the EWIS problem is strongly NP-complete for bipartite graphs of maximum degree three, but solvable in pseudo-polynomial time for cographs, interval graphs and chordal graphs, as well as for some other related graph classes.
Keywords: graf, neodvisna množica, popolni graf, dvodelni graf
Published in RUP: 15.10.2013; Views: 2882; Downloads: 116
URL Link to full text

19.
Characterization of edge-transitive 4-valent bicirculants
István Kovács, Boštjan Kuzman, Aleksander Malnič, Steve Wilson, 2012, original scientific article

Abstract: Bicirkulant je graf, ki dopušča avtomorfizem z natanko dvema orbitama vozlišč enake velikosti. V članku so karakterizirani vsi neizomorfni 4-valentni povezavno tranzitivni bicirkulanti. Posledično je izpeljana karakterizacija 4-valentnih ločno tranzitivnih dihedrantov.
Keywords: matematika, teorija grafov, štirivalenten graf, bicirkulantni graf, Cayleyev graf, povezavno tranzitiven graf, ločno tranzitiven graf, dihedrant, rose window graf, grupa avtomorfizmov
Published in RUP: 15.10.2013; Views: 3899; Downloads: 146
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20.
Automorphism groups of ratoional circulant graphs
Mikhail Klin, István Kovács, 2012, original scientific article

Keywords: circulantni graf, grupa avtomorfizmov, posplošen venec produkt
Published in RUP: 15.10.2013; Views: 2928; Downloads: 26
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