engleski

Blocking sets of the classical unital

It is known that the classical unital arising from the Hermitian curve in PG(2, 9) does not have a 2-coloring without monochromatic lines. Here we show that for q>=4 the Hermitian curve in PG(2, q^2) does possess 2-colorings without monochromatic lines. We present general constructions and also prove a lower bound on the size of blocking sets in the classical unital.

Blocking sets ; Unitals ; Hermitian curve

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