## 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 ${\cal C}$, have been determined for every odd __q__. Here we obtain a similar classification for those point sets of minimum size, which meet every externa
Some p-ranks related to a conic in PG(2, q)
β Scribed by Junhua Wu
- Publisher
- John Wiley and Sons
- Year
- 2010
- Tongue
- English
- Weight
- 144 KB
- Volume
- 18
- Category
- Article
- ISSN
- 1063-8539
No coin nor oath required. For personal study only.
β¦ Synopsis
Abstract
Let A be the incidence matrix of lines and points of the classical projective plane PG(2, q) with q odd. With respect to a conic in PG(2, q), the matrix A is partitioned into 9 submatrices. The rank of each of these submatrices over F~q~, the defining field of PG(2, q), is determined. Β© 2010 Wiley Periodicals, Inc. J Combin Designs 18: 224β236, 2010
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