Jezik: | Angleški jezik |
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Leto izida: | 2012 |
Tipologija: | 1.01 - Izvirni znanstveni članek |
Organizacija: | UM FNM - Fakulteta za naravoslovje in matematiko |
UDK: | 519.17 |
COBISS: |
16417369
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ISSN: | 1234-3099 |
Št. ogledov: | 778 |
Št. prenosov: | 331 |
Ocena: | 0 (0 glasov) |
Metapodatki: |
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Sekundarni jezik: | Slovenski jezik |
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Sekundarni naslov: | O mavrični povezanosti kartezičnih produktov in njihovih podgrafov |
Sekundarni povzetek: | Rainbow connection number of Cartesian products and their subgraphs are considered. Previously known bounds are compared and non-existence of such bounds for subgraphs of products are discussed. It is shown that the rainbow connection number of an isometric subgraph of a hypercube is bounded above with the rainbow connection number of the hypercube. Isometric subgraphs of hypercubes with the rainbow connection number smaller as much as possible than the rainbow connection of the hypercube are constructed. The concept of c-strong rainbow coloring is introduced. In particular it is proved that the so-called ▫$\Theta$▫-coloring of an isometric subgraph of a hypercube is its unique optimal c-strong rainbow coloring. |
Sekundarne ključne besede: | teorija grafov;mavrična povezanost;krepka mavrična povezanost;kartezični produkt grafov;izometrični podgraf;hiperkocka; |
URN: | URN:SI:UM: |
Vrsta dela (COBISS): | Znanstveno delo |
Strani: | str. 783-793 |
Letnik: | ǂVol. ǂ32 |
Zvezek: | ǂno. ǂ4 |
Čas izdaje: | 2012 |
ID: | 9595945 |