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arXiv 2005.11533math.NT
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随机数域的Arakelov类群

Arakelov class groups of random number fields

Alex Bartel, Henri Johnston, Hendrik W. Lenstra

AI总结:

本文为数域族中的Arakelov类群建立概率模型以修正Cohen--Lenstra--Martinet启发式,基于Chinburg的Omega(3)猜想对定向Arakelov类群的Galois模结构施加严格限制,并构造出具有非交换Galois群的无限反例系列。

摘要:

本文的主要目的是为数域族中的Arakelov类群建立一个概率模型,从而对理想类群的Cohen--Lenstra--Martinet启发式进行修正。为此,我们证明了Chinburg的Omega(3)猜想对定向Arakelov类群的Galois模结构施加了严格的限制。作为推论,我们构造了一个新的无限反例系列来反驳Cohen--Lenstra--Martinet启发式,其新颖特征在于它们的Galois群是非交换的。

英文摘要:

The main purpose of the paper is to formulate a probabilistic model for Arakelov class groups in families of number fields, offering a correction to the Cohen--Lenstra--Martinet heuristic on ideal class groups. To that end, we show that Chinburg's Omega(3) conjecture implies tight restrictions on the Galois module structure of oriented Arakelov class groups. As a consequence, we construct a new infinite series of counterexamples to the Cohen--Lenstra--Martinet heuristic, which have the novel feature that their Galois groups are non-abelian.

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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