JOURNAL ARTICLE

一般四次循环域的十个Ankeny-Artin-Chowla型类数公式

贤科 张

Year: 1988 Journal:   Science in China Series A-Mathematics Physics Astronomy & Technological Science (in Chinese) Vol: 18 (7)Pages: 688-697   Publisher: Science China Press

Abstract

设K为四次循环数域,k为其二次子域,记h(L)为域L的理想类数. 本文得到h-=h(K)/h(k)的十个同余公式. 特别若,素数p=r2+s2,s为偶数,则当p≡1(8)时,C1h-≡B(p-1)/4B3(p-1)/4(mod ρ),Bn是Bernoulli数;当ρ≡5(8)时,C2h-≡E(ρ-5)/8E(3ρ-7)/8(mod ρ),En是Euler数. 若实则. 若3在K=Q(√θ)分歧,则C4h-≡h(K*)/h(k)(mod 3),K*=Q(√3θ).Ci均为明显给出常数.此外还得到h-可能因子的一些关系. 这些结果相当于系统地把Ankeny-Arun-Chowla,Kiselev,Carlitz,陆洪文等从1948到1983年关于二次域的许多结果推广到四次循环域上去.

Keywords:
Physics

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Polymer Synthesis and Characterization
Physical Sciences →  Materials Science →  Polymers and Plastics

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