A note on a sumset in ${\mathbb{Z}}_{2k}$

Octavio A. Agustín-Aquino

Let $A$ and $B$ be additive sets of ${\mathbb{Z}}_{2k}$, where $A$ has cardinality $k$ and $B=v.\complement A$ with $v\in {\mathbb{Z}}_{2k}^{\times }$. In this note some bounds for the c…