On balanced $(Z_{4u}\times Z_{8v},\{4,5\},1)$ difference packings

Hengming Zhao, Rongcun Qin, Dianhua Wu

Let $K$ be a set of positive integers and let $G$ be an additive group. A $(G,K,1)$ difference packing is a set of subsets of $G$ with sizes from $K$ whose list of differences co…