Characterising bimodal collections of sets in finite groups

Sophie Huczynska, Maura B. Paterson

A collection of disjoint subsets $\mathcal{A}=\{A_1,A_2,\dots ,A_m\}$ of a finite abelian group is said to have the \emph{bimodal} property if, for any non-zero group element $\delta$, eit…