Proof of a Conjecture of Segre and Bartocci on Monomial Hyperovals in Projective Planes

Details Proof of a Conjecture of Segre and Bartocci on Monomial Hyperovals in Projective Planes Proof of a Conjecture of Segre and Bartocci on Monomial Hyperovals in Projective Planes

2010-10-19

arxiv.org/abs/1010.3965v1

Mathematics

Combinatorics

Scientific paper

The existence of certain monomial hyperovals $D(x^k)$ in the finite Desarguesian projective plane $PG(2,q)$, $q$ even, is related to the existence of points on certain projective plane curves $g_k(x,y,z)$. Segre showed that some values of $k$ ($k=6$ and $2^i$) give rise to hyperovals in $PG(2,q)$ for infinitely many $q$. Segre and Bartocci conjectured that these are the only values of $k$ with this property. We prove this conjecture through the absolute irreducibility of the curves $g_k$.

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