Minimal blocking sets in PG(n,2) and covering groups by subgroups

Alireza Abdollahi, M. J. Ataei, A. Mohammadi Hassanabadi

In this paper we prove that a set of points $B$ of PG(n,2) is a minimal blocking set if and only if $<B>=PG(d,2)$ with $d$ odd and $B$ is a set of $d+2$ points of $PG(d,2)$ no $d+1…