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Bibliographic Details
Main Authors: Bhattacharyya, Arindam, Kadiri, Vishnu, Ray, Anwesh
Format: Preprint
Published: 2023
Subjects:
Online Access:https://arxiv.org/abs/2309.03745
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Table of Contents:
  • Let $p$ be an odd prime number. We study growth patterns associated with finitely ramified Galois groups considered over the various number fields varying in a $\mathbb{Z}_p$-tower. These Galois groups can be considered as non-commutative analogues of ray class groups. For certain $\mathbb{Z}_p$-extensions in which a given prime above $p$ is completely split, we prove precise asymptotic lower bounds. Our investigations are motivated by the classical results of Iwasawa, who showed that there are growth patterns for $p$-primary class numbers of the number fields in a $\mathbb{Z}_p$-tower.