On the fourth power level of $\mathfrak{p}$-adic completions of biquadratic number fields

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1. Verfasser: Chomicz, Kazimierz
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Veröffentlicht: 2025
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author Chomicz, Kazimierz
author_facet Chomicz, Kazimierz
contents Let $K$ be a number field and $\mathfrak{p} \mid (2)$ be a prime ideal. We compute the fourth level of the $\mathfrak{p}$-adic completions of $K$ when the ramification index is $4$ and the inertial degree is trivial for the ideal $\mathfrak{p}$. This enables the computation of the fourth level of any $\mathfrak{p}$-adic completion of any quartic number field. Here we apply this result to biquadratic number fields and obtain lower bounds for the fourth level of such number fields.
format Preprint
id arxiv_https___arxiv_org_abs_2503_21559
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the fourth power level of $\mathfrak{p}$-adic completions of biquadratic number fields
Chomicz, Kazimierz
Number Theory
Let $K$ be a number field and $\mathfrak{p} \mid (2)$ be a prime ideal. We compute the fourth level of the $\mathfrak{p}$-adic completions of $K$ when the ramification index is $4$ and the inertial degree is trivial for the ideal $\mathfrak{p}$. This enables the computation of the fourth level of any $\mathfrak{p}$-adic completion of any quartic number field. Here we apply this result to biquadratic number fields and obtain lower bounds for the fourth level of such number fields.
title On the fourth power level of $\mathfrak{p}$-adic completions of biquadratic number fields
topic Number Theory
url https://arxiv.org/abs/2503.21559