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Contractible subgraphs, Thomassen's conjecture and the dominating cycle conjecture for snarks

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23520%2F08%3A00500655" target="_blank" >RIV/49777513:23520/08:00500655 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Contractible subgraphs, Thomassen's conjecture and the dominating cycle conjecture for snarks

  • Original language description

    We show that the conjectures by Matthews and Sumner (every 4-connected claw-free graph is Hamiltonian), by Thomassen (every 4-connected line graph is Hamiltonian) and by Fleischner (every cyclically 4-edge-connected cubic graph has either a 3- edge-coloring or a dominating cycle), which are known to be equivalent, are equivalent to the statement that every snark (i.e. a cyclically 4-edge-connected cubic graph of girth at least five that is not 3-edge-colorable) has a dominating cycle.

  • Czech name

    Kontrahovatelné podgrafy, Thomassenova hypotéza a hypotéza o dominantních kružnicích pro snarky

  • Czech description

    V článku je ukázáno, že Matthews-Sumnerova hypotéza (každý 4-souvislý graf bez K(1,3) je hamiltonovský), Thomassenova hypotéza (každý 4-souvislý hranový graf je hamiltonovský) a Fleischnerova hypotéza (každý cyklicky hranově 4-souvislý kubický graf má hranové 3-obarvení nebo dominantní kružnici), o nichž je známo, že jsou ekvivalentní, jsou ekvivaletní s tvrzením že každý snark (tj. cyklicky hranově 4-souvislý kubický graf s obvodem alespoň 5 který není hranově 3-obarvitelný) má dominantní kružnici.

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BA - General mathematics

  • OECD FORD branch

Result continuities

  • Project

    <a href="/en/project/1M0545" target="_blank" >1M0545: Institute for Theoretical Computer Science</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2008

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Discrete Mathematics

  • ISSN

    0012-365X

  • e-ISSN

  • Volume of the periodical

    308

  • Issue of the periodical within the volume

    24

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    14

  • Pages from-to

  • UT code for WoS article

    000261259100019

  • EID of the result in the Scopus database