Small 3-fold blocking sets in $\mathrm{PG}(2,p^n)$

Bence Csajbók, Máté Róbert Kepes, Eszter Robin +3

A $t$-fold blocking set of the finite Desarguesian plane $\mathrm{PG}(2,p^n)$, $p$ prime, is a set of points meeting each line of the plane in at least $t$ points. The minimum size…