Jezik: | Angleški jezik |
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Leto izida: | 2012 |
Tipologija: | 1.08 - Objavljeni znanstveni prispevek na konferenci |
Organizacija: | UM FERI - Fakulteta za elektrotehniko, računalništvo in informatiko |
UDK: | 519.17 |
COBISS: | 16280921 |
ISSN: | 0012-365X |
Št. ogledov: | 360 |
Št. prenosov: | 19 |
Ocena: | 0 (0 glasov) |
Metapodatki: |
Sekundarni jezik: | Angleški jezik |
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Sekundarni naslov: | Pred-ovojnično število in leksikografski produkt |
Sekundarni povzetek: | Recently the invariant (copoint) pre-hull number ▫$\mathrm{ph}(G)$▫ of a graph ▫$G$▫ that measures the nonconvexity of a convex space was introduced by Polat and Sabidussi [On the geodesic pre-hull number of a graph, Europ. J. Combin. 30 (2009), 1205--1220]. We introduce a similar invariant called convex pre-hull number which is a natural upper bound for the copoint pre-hull number and consider in this work both on the lexicographic product of graphs. We present exact values with respect to properties of the factors. |
Sekundarne ključne besede: | matematika;teorija grafov;pred-ovojnično število;geodetska konveksnost;leksikografski produkt; |
URN: | URN:SI:UM: |
Vrsta dela (COBISS): | Delo ni kategorizirano |
Strani: | Str. 2153-2157 |
ID: | 1476538 |