We determine all point-sets of minimum size in PG(2,q), q odd that meet every external line to a conic in PG(2,q). The proof uses a result on the linear system of polynomials vanishing at every internal point to the conic and a corollary to the classification theorem of all subgroups of PGL(2,q).
Blocking sets of external lines to a conic in PG(2,q), q odd / Aguglia, Angela; Korchmáros, G.. - In: COMBINATORICA. - ISSN 0209-9683. - 26:4(2006), pp. 379-394. [10.1007/s00493-006-0021-2]
Blocking sets of external lines to a conic in PG(2,q), q odd
AGUGLIA, Angela;
2006-01-01
Abstract
We determine all point-sets of minimum size in PG(2,q), q odd that meet every external line to a conic in PG(2,q). The proof uses a result on the linear system of polynomials vanishing at every internal point to the conic and a corollary to the classification theorem of all subgroups of PGL(2,q).File in questo prodotto:
Non ci sono file associati a questo prodotto.
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
