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arXiv · 2608.13312

Local Minkowski units in non-abelian extensions with cyclic Sylow $p$-subgroups

Wan Lee·Donghyeok Lim
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Abstract

We establish a criterion for the existence of a local Minkowski unit at $p$ that applies to all Galois extensions with Galois group isomorphic to the direct product of a non-$p$-group and a cyclic $p$-group. As applications, we construct non-abelian extensions admitting a local Minkowski unit at $p$ under various ramification conditions and analyze the Iwasawa module structure of units in $\mathbb{Z}_p$-extensions of number fields. We also extend our study to the case where the group of $p$-power roots of unity is nontrivial.

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Wan Lee, Donghyeok Lim. 2026-08-23. Local Minkowski units in non-abelian extensions with cyclic Sylow $p$-subgroups. https://arxiv.org/abs/2608.13312

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