Author(s): Cossidente A, King OH
Abstract: Some new examples of two--character sets with respect to planes of PG(3,q^2), q odd, are constructed. They arise from three--dimensional hyperbolic quadrics, from thegeometry of an orthogonal polarity commuting with a unitary polarity. The last examples arise from the geometry of the unitary group PSU(3,3) acting onthe split Cayley hexagon H(2).
Keywords: commuting polarities, two--character sets, Hermitian surface, generalized hexagon
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Dr Oli King
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