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{\bf K. Coolsaet and H. Sticker}
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{\bf Arcs with Large Conical Subsets}
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We classify the arcs in $\mathrm{PG}(2,q)$, $q$ odd, which consist of $(q+3)/2$ points of a conic $C$ and two points not on te conic but external to $C$, or $(q+1)/2$ points of $C$ and two additional points, at least one of which is an internal point of $C$. We prove that for arcs of the latter type, the number of points internal to $C$ can be at most $4$, and we give a complete classification of all arcs that attain this bound.  Finally, we list some computer results on extending arcs of both types with further points.

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