Upper bounds for the piercing number of families of pairwise intersecting convex polygons

Meir Katchalski, David Nashtir

A convex polygon $A$ is related to a convex $m$-gon $K={\bigcap }_{i=1}^m{k}_i^{+}$, where $k_1^{+},...,k_m^{+}$ are the $m$ halfplanes whose intersection is equal to $K$, if $A$ is the in…