HallJankoGraph - Maple Help

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GraphTheory[SpecialGraphs]

 HallJankoGraph
 construct Hall-Janko graph

 Calling Sequence HallJankoGraph()

Description

 • The HallJankoGraph command creates the Hall-Janko graph.
 • The Hall-Janko graph is a 36-regular undirected graph with 100 vertices and 1800 edges.

Examples

 > $\mathrm{with}\left(\mathrm{GraphTheory}\right):$
 > $\mathrm{with}\left(\mathrm{SpecialGraphs}\right):$
 > $G≔\mathrm{HallJankoGraph}\left(\right)$
 ${G}{≔}{\mathrm{Graph 1: an undirected unweighted graph with 100 vertices and 1800 edge\left(s\right)}}$ (1)
 > $\mathrm{IsRegular}\left(G\right)$
 ${\mathrm{true}}$ (2)
 > $\mathrm{ChromaticNumber}\left(G\right)$
 ${10}$ (3)

Compatibility

 • The GraphTheory[SpecialGraphs][HallJankoGraph] command was introduced in Maple 2019.
 • For more information on Maple 2019 changes, see Updates in Maple 2019.

 See Also