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arXiv 1104.4594math.NT
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具有等价积分迹形式的数域

On number fields with equivalent integral trace forms

Guillermo Mantilla-Soler

摘要:

设$K$为数字字段。\textit{integral trace form}是$\text{tr}_{K/\mathbb{Q}}(x^2)|_{O_{K}}.$给出的整二次型。本文研究了具有等价积分迹形式的非共轭数域的存在性。作为本文主要结果之一的推论,我们证明了任何两个具有相同签名和相同素判别式的非全实数域具有等价的积分迹形式。另外,基于作者以前的结果和本文给出的证据,我们猜想:任意两个基本判别式的全实四次域具有等价的迹零形式当且仅当它们是共轭的.

英文摘要:

Let $K$ be a number field. The \textit{integral trace form} is the integral quadratic form given by $\text{tr}_{K/\mathbb{Q}}(x^2)|_{O_{K}}.$ In this article we study the existence of non-conjugated number fields with equivalent integral trace forms. As a corollary of one of the main results of this paper, we show that any two non-totally real number fields with the same signature and same prime discriminant have equivalent integral trace forms. Additionally, based on previous results obtained by the author and the evidence presented here, we conjecture that any two totally real quartic fields of fundamental discriminant have equivalent trace zero forms if and only if they are conjugated.

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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