construct Higman-Sims graph
The HigmanSimsGraph command creates the Higman-Sims graph, a 22-regular graph with 100 vertices and 1100 edges.
The automorphism group of the Higman-Sims graph contains the Higman-Sims group as a subgroup of index 2.
HS≔Graph 1: an undirected unweighted graph with 100 vertices and 1100 edge(s)
"Higman-Sims graph", Wikipedia. http://en.wikipedia.org/wiki/Higman-Sims_graph
The GraphTheory[SpecialGraphs][HigmanSimsGraph] command was introduced in Maple 2020.
For more information on Maple 2020 changes, see Updates in Maple 2020.
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