Dual polar graph $\phantom{.}^2 \mathrm{D}_4(2)$

Number of vertices:$765$
Diameter:$3$
Intersection array:$\{28,24,16;1,3,7\}$
Spectrum:$28^1 11^{84} 1^{476} (-7)^{204}$
Automorphism group:$\mathrm{PSO}^-(8,2)$
Distance-transitive:Yes
Primitive




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Last updated: 8 August 2024