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arXiv 1302.3099math.NT
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计算$p$ -分歧模的挠

Computing the torsion of the $p$-ramified module

Frédéric Pitoun, Firmin Varescon

摘要:

将素数$p$和数域$\K$固定,用$M$表示$\Ko$在$p$外无分歧的极大阿贝尔$p$ -扩张.本文的目的是研究$\Z_p$ -模$\gal(M/\Ko)$,并给出一种有效地计算其作为$\Z_p$ -模的结构的方法.然后,我们给出了数值结果,实二次域,连同解释通过Cohen-Lenstra的算法。

英文摘要:

We fix a prime number $p$ and $\K$ a number field, we denote by $M$ the maximal abelian $p$-extension of $\Ko$ unramified outside $p$. The aim of this paper is to study the $\Z_p$-module $\gal(M/\Ko)$ and to give a method to effectively compute its structure as a $\Z_p$-module. Then we give numerical results, for real quadratic fields, together with interpretations via Cohen-Lenstra's heuristics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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