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Blocking sets of nonsecant lines to a conic in PG (2, q ), q odd
Author(s) -
Aguglia Angela,
Korchmáros Gábor
Publication year - 2005
Publication title -
journal of combinatorial designs
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.618
H-Index - 34
eISSN - 1520-6610
pISSN - 1063-8539
DOI - 10.1002/jcd.20042
Subject(s) - conic section , mathematics , combinatorics , tangent , blocking (statistics) , line (geometry) , point (geometry) , geometry , statistics
In a previous paper 1, all point sets of minimum size in PG (2, q ), blocking all external lines to a given irreducible conic ${\cal C}$ , 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 ${\cal C}$ . © 2004 Wiley Periodicals, Inc.

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