Counting \(G\)-extensions by discriminant

DOI10.4310/MRL.2018.V25.N4.A5zbMATH Open1444.11213arXiv1704.03124OpenAlexW2962815594MaRDI QIDQ1720114

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Publication date: 12 February 2019

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Abstract: The problem of analyzing the number of number field extensions $L/K$ with bounded (relative) discriminant has been the subject of renewed interest in recent years, with significant advances made by Schmidt, Ellenberg-Venkatesh, Bhargava, Bhargava-Shankar-Wang, and others. In this paper, we use the geometry of numbers and invariant theory of finite groups, in a manner similar to Ellenberg and Venkatesh, to give an upper bound on the number of extensions $L/K$ with fixed degree, bounded relative discriminant, and specified Galois closure.

Full work available at URL: https://arxiv.org/abs/1704.03124

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