In a previous paper [1], all point sets of minimum size in PG(2,q), blocking all external lines to a given irreducible conic C, have been determined for every odd q. Here we obtain a similar classification for those point sets of minimum size, which meet every external and tangent line to C.
Blocking sets of nonsecant lines to a conic in PG(2,q), q odd / Aguglia, A.; Korchmáros, G.. - In: JOURNAL OF COMBINATORIAL DESIGNS. - ISSN 1063-8539. - 13:4(2005), pp. 292-301. [10.1002/jcd.20042]
Blocking sets of nonsecant lines to a conic in PG(2,q), q odd
Aguglia, A.;
2005-01-01
Abstract
In a previous paper [1], all point sets of minimum size in PG(2,q), blocking all external lines to a given irreducible conic C, have been determined for every odd q. Here we obtain a similar classification for those point sets of minimum size, which meet every external and tangent line to C.File in questo prodotto:
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