设Q为有理数域,利用局部域的方法,讨论了p在Q的10次根扩张Q(u~(1/10))(u∈R)中的分解问题.并完全确定了(p,10)=1,(p,u)=1时的分解所有可能的形式.
Q is the field of rational number,by using of the method of local field,the problem of the law of decomposition of prime ideal p in Q(u~(1/10))(u ∈R) was discussed.The possible type of decomposition of prime ideal was given when(p,10)=1,(p,u) = 1.