北京大学学报(自然科学版)1999,Vol.35Issue(1):13-17,5.
与分圆方程有关的差集的不可能性
Impossibility of Difference Sets Depending on Certain Cyclotomic Equation
万兆泽1
作者信息
- 1. 北京大学数学科学学院,北京,100871
- 折叠
摘要
Abstract
Let f=Ordp(q), ξp be a primitive p-th root of unity, γ∈Z[ξp]. Suppose that f is odd and γ(-γ)=n(where n∈Z,q|n). By some assumption, K. T. Arasu and A. Pott obtain that γ can be written as the form γ= ∑e i=1 ai ∑f-1 j=0 ξiqjp(where p-1=ef). And note that it would be nice if the condition "f is odd" could be removed. In this paper, the author will deal with the case "f is even" and get a corresponding result.关键词
分圆域/差集/素理想/Galois群Key words
cyclotomic fields/difference sets/prime ideal/Galois group分类
数理科学引用本文复制引用
万兆泽..与分圆方程有关的差集的不可能性[J].北京大学学报(自然科学版),1999,35(1):13-17,5.