Structure of fine Selmer groups in abelian p-adic Lie extensions

Fuente: arXiv
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Main Authors: Kundu, Debanjana, Di Capriglio, Filippo Alberto Edoardo Nuccio Mortarino Majno, Ramdorai, Sujatha
Format: Preprint
Published: 2023
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author Kundu, Debanjana
Di Capriglio, Filippo Alberto Edoardo Nuccio Mortarino Majno
Ramdorai, Sujatha
author_facet Kundu, Debanjana
Di Capriglio, Filippo Alberto Edoardo Nuccio Mortarino Majno
Ramdorai, Sujatha
contents This paper studies fine Selmer groups of elliptic curves in abelian $p$-adic Lie extensions. A class of elliptic curves are provided where both the Selmer group and the fine Selmer group are trivial in the cyclotomic $\mathbb{Z}_p$-extension. The fine Selmer groups of elliptic curves with complex multiplication are shown to be pseudonull over the trivializing extension in some new cases. Finally, a relationship between the structure of the fine Selmer group for some CM elliptic curves and the Generalized Greenberg's Conjecture is clarified.
format Preprint
id arxiv_https___arxiv_org_abs_2304_10938
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Structure of fine Selmer groups in abelian p-adic Lie extensions
Kundu, Debanjana
Di Capriglio, Filippo Alberto Edoardo Nuccio Mortarino Majno
Ramdorai, Sujatha
Number Theory
This paper studies fine Selmer groups of elliptic curves in abelian $p$-adic Lie extensions. A class of elliptic curves are provided where both the Selmer group and the fine Selmer group are trivial in the cyclotomic $\mathbb{Z}_p$-extension. The fine Selmer groups of elliptic curves with complex multiplication are shown to be pseudonull over the trivializing extension in some new cases. Finally, a relationship between the structure of the fine Selmer group for some CM elliptic curves and the Generalized Greenberg's Conjecture is clarified.
title Structure of fine Selmer groups in abelian p-adic Lie extensions
topic Number Theory
url https://arxiv.org/abs/2304.10938