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rdf:type
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Description
| - Hamiltonovský index grafu G je definován jako nejmenší přirozené číslo k, pro které je k-tý iterovaný hranový graf grafu G hamiltonovský. V článku nejprve ukazujeme, že, s jednou výjimkou, přidání hrany do grafu nemůže zvýšit jeho hamiltonovský index. Tento výsledek je použit k důkazu toho, že operace kontrakce A(F)-kontrahovatelného podgrafu F grafu G ani uzávěrová operace, aplikovaná na G (pokud G je grafem bez K(1,3)), nemění hodnotu hamiltonovakého indexu grafu G. (cs)
- The hamiltonian index of a graph G is the smallest integer k such that the k-th iterated line graph of G is hamiltonian. We first show that, with one exceptional case, adding an edge to a graph cannot increase its hamiltonian index. We use this result to prove that neither the contraction of an A(F)-contractible subgraph F of a graph G nor the closure operation performed on G (if G is claw-free) affects the value of the hamiltonian index of a graph G.
- The hamiltonian index of a graph G is the smallest integer k such that the k-th iterated line graph of G is hamiltonian. We first show that, with one exceptional case, adding an edge to a graph cannot increase its hamiltonian index. We use this result to prove that neither the contraction of an A(F)-contractible subgraph F of a graph G nor the closure operation performed on G (if G is claw-free) affects the value of the hamiltonian index of a graph G. (en)
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Title
| - On stability of the hamiltonian index under contractions and closures
- Stabilita hamiltonovského indexu při kontrakcích a uzávěrech (cs)
- On stability of the hamiltonian index under contractions and closures (en)
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skos:prefLabel
| - On stability of the hamiltonian index under contractions and closures
- Stabilita hamiltonovského indexu při kontrakcích a uzávěrech (cs)
- On stability of the hamiltonian index under contractions and closures (en)
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skos:notation
| - RIV/49777513:23520/05:00000344!RIV07-MSM-23520___
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http://linked.open.../vavai/riv/strany
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http://linked.open...avai/riv/aktivita
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http://linked.open...avai/riv/aktivity
| - P(1M0545), Z(MSM4977751301)
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http://linked.open...iv/cisloPeriodika
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http://linked.open...vai/riv/dodaniDat
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http://linked.open...aciTvurceVysledku
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http://linked.open.../riv/druhVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...titaPredkladatele
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http://linked.open...dnocenehoVysledku
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http://linked.open...ai/riv/idVysledku
| - RIV/49777513:23520/05:00000344
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http://linked.open...riv/jazykVysledku
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http://linked.open.../riv/klicovaSlova
| - hamiltonian index; closure; contraction; line graph (en)
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http://linked.open.../riv/klicoveSlovo
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http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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http://linked.open...ontrolniKodProRIV
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http://linked.open...i/riv/nazevZdroje
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http://linked.open...in/vavai/riv/obor
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http://linked.open...ichTvurcuVysledku
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http://linked.open...cetTvurcuVysledku
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http://linked.open...vavai/riv/projekt
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http://linked.open...UplatneniVysledku
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http://linked.open...iv/tvurceVysledku
| - Ryjáček, Zdeněk
- Xiong, Liming
- Broersma, Hajo
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http://linked.open...n/vavai/riv/zamer
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issn
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number of pages
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http://localhost/t...ganizacniJednotka
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is http://linked.open...avai/riv/vysledek
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