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Kubischer Graph
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
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Ein einfacher Graph heiΓt in der Graphentheorie kubisch oder 3-regulΓ€r, falls alle seine Knoten den Grad 3 besitzen. Kubische Graphen sind damit regulΓ€re Graphen. Da 1-regulΓ€re Graphen lediglich eine Paarung darstellen und 2-regulΓ€re Graphen in disjunkte Zyklen zerfallen, sind kubische Graphen sogesehen die einfachsten nichttrivialen FΓ€lle regulΓ€rer Graphen.
Contents
β’ Beispiele
β’ Weblinks
β’ Einzelnachweise
ββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββββ
Anzahl kubischer Graphen
Da die Summe der Knotengrade in einfachen Graphen immer gerade sein muss, besitzen kubische Graphen immer gerade Knotenanzahl.
| n | # ZusammenhΓ€ngende kubische Graphen mit n Knoten [ 1 ] | # Kubische Graphen mit n Knoten [ 2 ] |
|---|---|---|
| 2 | 0 | 0 |
| 4 | 1 | 1 |
| 6 | 2 | 2 |
| 8 | 5 | 6 |
| 10 | 19 | 21 |
| 12 | 85 | 94 |
Beispiele
Weblinks
Commons
: 3-regular graphs
β Sammlung von Bildern, Videos und Audiodateien
β’ Weisstein, Eric W.: Cubic Graph. In: MathWorld (englisch).
Einzelnachweise