Improved bounds for cross-Sperner systems

Natalie Behague, Akina Kuperus, Natasha Morrison +1

A collection of families $({\mathcal{F}}_1,{\mathcal{F}}_2,\cdots ,{\mathcal{F}}_k)\in \mathcal{P}([n]{)}^k$ is cross-Sperner if there is no pair $i\ne j$ for which some $F_i…