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