Double blocking sets of size $3q-1$ in $\mathrm{PG}(2,q)$

Bence Csajbók, Tamás Héger

The main purpose of this paper is to find double blocking sets in $\mathrm{PG}(2,q)$ of size less than $3q$, in particular when $q$ is prime. To this end, we study double blocking…