On the unramified Iwasawa module of a $\mathbb{Z}_p$-extension generated by division points of a CM elliptic curve

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Main Author: Itoh, Tsuyoshi
Format: Preprint
Published: 2020
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author Itoh, Tsuyoshi
author_facet Itoh, Tsuyoshi
contents We consider the unramified Iwasawa module $X (F_\infty)$ of a certain $\mathbb{Z}_p$-extension $F_\infty/F_0$ generated by division points of an elliptic curve with complex multiplication. This $\mathbb{Z}_p$-extension has properties similar to those of the cyclotomic $\mathbb{Z}_p$-extension of a real abelian field, however, it is already known that $X (F_\infty)$ can be infinite. That is, an analog of Greenberg's conjecture for this $\mathbb{Z}_p$-extension fails. In this paper, we mainly consider analogs of weak forms of Greenberg's conjecture.
format Preprint
id arxiv_https___arxiv_org_abs_2001_04687
institution arXiv
publishDate 2020
record_format arxiv
spellingShingle On the unramified Iwasawa module of a $\mathbb{Z}_p$-extension generated by division points of a CM elliptic curve
Itoh, Tsuyoshi
Number Theory
11R23 (11G05, 11G15)
We consider the unramified Iwasawa module $X (F_\infty)$ of a certain $\mathbb{Z}_p$-extension $F_\infty/F_0$ generated by division points of an elliptic curve with complex multiplication. This $\mathbb{Z}_p$-extension has properties similar to those of the cyclotomic $\mathbb{Z}_p$-extension of a real abelian field, however, it is already known that $X (F_\infty)$ can be infinite. That is, an analog of Greenberg's conjecture for this $\mathbb{Z}_p$-extension fails. In this paper, we mainly consider analogs of weak forms of Greenberg's conjecture.
title On the unramified Iwasawa module of a $\mathbb{Z}_p$-extension generated by division points of a CM elliptic curve
topic Number Theory
11R23 (11G05, 11G15)
url https://arxiv.org/abs/2001.04687