Formulae for the relative class number of an imaginary abelian field in the form of a determinant

Formulae for the relative class number of an imaginary abelian field in the form of a determinant
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行列式形式的虚阿贝尔场的相对类数公式

DOI:
10.1017/s0027763000007959
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发表时间:
2001
影响因子:
0.8
通讯作者:
R. Kučera
R. Kučera
中科院分区:
数学2区
文献类型:
--
作者:
R. Kučera

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文献中有许多关于虚交换域的相对类数的行列式公式。通常,这样的公式包含一个因子,对于许多字段,该因子等于零,因此它没有给出关于这些字段的类号的信息。本文的目的是显示一种方法,获得大多数这些公式在一个独特的方式,即通过Stickelberger理想。此外,通过对Ramachandra构造独立分圆单位的方法的改进,得到了一些新的非零公式。
There is in the literature a lot of determinant formulae involving the relative class number of an imaginary abelian field. Usually such a formula contains a factor which is equal to zero for many fields and so it gives no information about the class number of these fields. The aim of this paper is to show a way of obtaining most of these formulae in a unique fashion, namely by means of the Stickelberger ideal. Moreover some new and non-vanishing formulae are derived by a modification of Ramachandra’s construction of independent cyclotomic units.
关于 Demyanenko 行列式的推广
DOI: --
发表时间: 2007
期刊: Abh.Math.Sem.Univ.Hamburg 77
影响因子: --
作者:
Mikihito Hirabayashi;Hirofumi Tsumura;Mikihito Hirabayashi;Toshiyuki Akita;Toshiyuki Akita;金光 滋;T. Akita and N. Kawazumi;S. Kanemitsu;金光 滋
通讯作者: 金光 滋