On the Ubiquity and Utility of Cyclic Schemes

M. Abreu, M. J. Funk, D. Labbate +1

Let $k,l,m,n$, and $\mu$ be positive integers. A ${\mathbb{Z}}_{\mu }$--{\it scheme of valency} $(k,l)$ and {\it order} $(m,n)$ is a $m\times n$ array $(S_{ij})$ of subsets $S_{ij} \subset…