Vol. 5, No. 1, 2007

Download this article
Download this article For screen
For printing
Recent Issues
Volume 17, Issue 3 (189-249)
Volume 17, Issue 2 (77-188)
Volume 17, Issue 1 (1-75)
Volume 16, Issue 1
Volume 15, Issue 1
Volume 14, Issue 1
Volume 13, Issue 1
Volume 12, Issue 1
Volume 11, Issue 1
Volume 10, Issue 1
Volume 9, Issue 1
Volume 8, Issue 1
Volume 6+7, Issue 1
Volume 5, Issue 1
Volume 4, Issue 1
Volume 3, Issue 1
Volume 2, Issue 1
Volume 1, Issue 1
The Journal
About the Journal
Editorial Board
Subscriptions
Submission Guidelines
Submission Form
Ethics Statement
Editorial Login
ISSN (electronic): 2640-7345
ISSN (print): 2640-7337
Author Index
To Appear
 
Other MSP Journals
On minimum size blocking sets of external lines to a quadric in PG($d,q$)

Paola Biondi, Pia Maria Lo Re and Leo Storme

Vol. 5 (2007), No. 1, 1–11
Abstract

We characterize the minimum size blocking sets with respect to the external lines to a non-singular quadric or a quadric with a point vertex in PG(d,q), d 4 and q 9. Our results show that these minimum size blocking sets are equal to the sets of points not on the quadric in a suitably chosen hyperplane with respect to the quadric.

Keywords
blocking sets, quadrics
Mathematical Subject Classification 2000
Primary: 05B25, 51E20, 51E21
Milestones
Received: 12 December 2006
Accepted: 5 April 2007
Authors
Paola Biondi
Pia Maria Lo Re
Leo Storme
State University of Ghent (RUG)
Belgium