FirstZagrebIndex on LabeledGraph
The sum of the squares of the degrees.
FindStat's St000465. The graph with no vertices gives 0.
Called as CombinatorialStat(x, "FirstZagrebIndex"). The head's page has its examples.
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FindStat St000465
The first Zagreb index of a graph.
| Object | Value |
|---|---|
([],1) | 0 |
([],2) | 0 |
([],3) | 0 |
([],4) | 0 |
([],5) | 0 |
([],6) | 0 |
([],7) | 0 |
([(0,1)],2) | 2 |
Data from FindStat, the combinatorial statistic finder; the page at findstat.org/St000465 has the rest.