Unitals in $PG(2,4)$

Number of vertices:$280$
Diameter:$4$
Intersection array:$\{9,8,6,3;1,1,3,8\}$
Spectrum:$9^1 4^{64} 1^{105} (-3)^{90} (-5)^{20}$
Automorphism group:$\mathrm{P} \Gamma \mathrm{L}(3,4).2$
Distance-transitive:Yes
Primitive




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Last updated: 28 February 2024