Boolean lattice without small rainbow subposets

Gyula O. H. Katona, Yaping Mao, Kenta Ozeki +2

A Boolean lattice ${\mathcal{B}}_n=(2^X,\le )$ is the power set of an $n$-element ground set $X$ equipped with inclusion relation. For two posets $\mathcal{P}$ and $\mathcal{Q}$, we…