Stabbing Pairwise Intersecting Disks by Five Points

Sariel Har-Peled, Haim Kaplan, Wolfgang Mulzer +4

Suppose we are given a set $\mathcal{D}$ of $n$ pairwise intersecting disks in the plane. A planar point set $P$ stabs $\mathcal{D}$ if and only if each disk in $\mathcal{D}$ conta…