Y Sun,
Q Wang, T Yan, C Zhao - arXiv preprint arXiv:1704.05544, 2017 - arxiv.org
Let $ p $ be an odd prime, $ n $ a positive integer and $ g $ a primitive root of $ p^ n $.
Suppose $ D_i^{(p^ n)}=\{g^{2s+ i}| s= 0, 1, 2,\cdots,\frac {(p-1) p^{n-1}}{2}\} $, $ i= 0, 1$, is …