Two Remarks on Blocking Sets and Nuclei in Planes of Prime Order
Eter Sziklai · 1997
In this paper we characterize a sporadic non-Redei type blocking set of PG.2; 7/ having minimum cardinality, and derive an upper bound for the number of nuclei of sets in PG.2; q/ having less than qC 1 points. Our methods involve polynomials over finite fields, and work mainly for planes of prime order.