A point P not on a non-degenerate conic C in PG(2, q), q odd, is called internal to C if no tangent line to C contains P, external otherwise. The set of internal points of C is a [q(q−1)/2] -set of type (0, (q−1)/2 , (q+1)/2). In this paper, we classify all [q(q−1)/2]-sets of class [0, m, n] having exactly two kinds of outer points.
A characterization of the set of internal points of a conic in PG(2,q), q odd
Innamorati, Stefano;Zuanni, Fulvio
2019-01-01
Abstract
A point P not on a non-degenerate conic C in PG(2, q), q odd, is called internal to C if no tangent line to C contains P, external otherwise. The set of internal points of C is a [q(q−1)/2] -set of type (0, (q−1)/2 , (q+1)/2). In this paper, we classify all [q(q−1)/2]-sets of class [0, m, n] having exactly two kinds of outer points.File in questo prodotto:
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