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arXiv 2403.07545math.NTmath.GRmath.GTmath.QA
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绝对伽罗瓦群中对合的Artin-Schreier广群

Artin-Schreier quandles of involutions in absolute Galois groups

Markus Szymik

AI总结:

本研究提出与绝对伽罗瓦群相关的新域不变量Artin-Schreier quandle,明确其在形式实数域中的自由生成结构,给出洛朗级数域下的计算方式,证实一般情形下该结构存在关系,细化了域的实谱研究。

摘要:

我们提出一种新的域不变量——Artin-Schreier quandle(广群),它细化了域的实谱,且与域的绝对伽罗瓦群相关。对于形式实数域,该广群在其簇中由一个康托尔空间的未定元自由生成。对于洛朗级数域,我们利用系数域的Artin-Schreier广群对其进行了计算。该结果及其他例子表明,一般情况下该广群中存在关系。

英文摘要:

We introduce a new invariant of fields that refines their real spectrum and is related to their absolute Galois group: the Artin-Schreier quandle. For formally real number fields, it is freely generated in its variety by a Cantor space of indeterminates. For Laurent series fields, we compute it in terms of the Artin-Schreier quandle of the coefficient field. This result and other examples show that, in general, there are relations.

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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