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1Dipartimento di Matematica, Politecnico di Bari, Via Orbona 4, 70125 Bari, Italy
2Department of Mathematics, University of Regina, Regina, Canada S4D 0A2
3Dipartimento di Matematica e Informatica, Università della Basilicata, Campus Macchia Romana, Viale dell'Ateneo Lucano 10, 85100 Potenza, Italy
Citation Information: Advances in Geometry. Volume 11, Issue 4, Pages 603–614, ISSN (Online) 1615-7168, ISSN (Print) 1615-715X, DOI: 10.1515/advgeom.2011.022, August 2011
Publication History:
Given an irreducible conic 
in PG(2, q) with q odd, how many points of another irreducible conic 𝒟 in PG(2, q) are external to ? It is not hard to find 𝒟 such that either all its points off are external to , or none of its points are. Apart from these cases, we prove that for q large enough, the number we seek differs from 
by at most 
.
Key words.: Projective planes; conics; arcs; plane curves
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