DistanceRegular.org
Gewirtz graph
Number of vertices:
$56$
Diameter:
$2$
Intersection array:
$\{10,9;1,2\}$
Spectrum:
$10^1 2^{35} (-4)^{20}$
Automorphism group:
$\mathrm{PSL}(3,4)$
Distance-transitive:
Yes
Primitive
Downloads
Adjacency matrix
Adjacency matrix in GAP format
Adjacency matrix in CSV format
Graph in GRAPE format
Links
Andries Brouwer
Wikipedia
Wolfram
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Graphs with 51-100 vertices
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Graphs with diameter 2
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Graphs with valency 10
Last updated: 22 January 2017