Linear Blocking Sets: A Survey

Abstract

A class of small minimal blocking sets, called linear, was introduced in [9]. Using a result of [2], it has been proven that, with few exceptions, all small minimal blocking sets of Redei type in the finite desarguesian projective planes are linear [9], and that there are examples of non-Redei type in PG(7(2,q t ), t ≥ 4, [14]. The aim of this paper is to collect the known results and to list all the known examples of linear blocking sets of minimum and maximum size.