强正则Cayley图、斜Hadamard差集与相对Gauss和的合理性
Strongly Regular Cayley Graphs, Skew Hadamard Difference Sets, and Rationality of Relative Gauss Sums
摘要：
本文给出了强正则Cayley图和斜Hadamard差集的构造。这两种构造都是基于有限域上分圆类的选择，我们的结果将Schmidt和White [24]给出的11个分圆强正则图的散例中的10个和几个子域例子推广到无限族中.这些强正则图的无限族具有新的参数。我们采用的主要工具是相对高斯和，而不是明确的评价高斯和。
英文摘要：
In this paper, we give constructions of strongly regular Cayley graphs and skew Hadamard difference sets. Both constructions are based on choosing cyclotomic classes in finite fields, and our results generalize ten of the eleven sporadic examples of cyclotomic strongly regular graphs given by Schmidt and White [24] and several of subfield examples into infinite families. These infinite families of strongly regular graphs have new parameters. The main tools that we employed are relative Gauss sums instead of explicit evaluations of Gauss sums.
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