On Kummer characters arising from Galois actions on the pro-$p$ fundamental groups of once-punctured CM elliptic curves

Fuente: arXiv
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Main Author: Ishii, Shun
Format: Preprint
Published: 2023
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_version_ 1866910003784318976
author Ishii, Shun
author_facet Ishii, Shun
contents In this paper, we study certain Kummer characters arising from the pro-$p$ geometric fundamental groups of CM elliptic curves minus their origins (once-punctured CM elliptic curves). These characters may be regarded as analogues of the Soulé characters. We investigate various arithmetic assumptions under which such characters are nontrivial or even surjective.
format Preprint
id arxiv_https___arxiv_org_abs_2312_04175
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle On Kummer characters arising from Galois actions on the pro-$p$ fundamental groups of once-punctured CM elliptic curves
Ishii, Shun
Number Theory
1G05, 11R23, 11R32, 12E30
In this paper, we study certain Kummer characters arising from the pro-$p$ geometric fundamental groups of CM elliptic curves minus their origins (once-punctured CM elliptic curves). These characters may be regarded as analogues of the Soulé characters. We investigate various arithmetic assumptions under which such characters are nontrivial or even surjective.
title On Kummer characters arising from Galois actions on the pro-$p$ fundamental groups of once-punctured CM elliptic curves
topic Number Theory
1G05, 11R23, 11R32, 12E30
url https://arxiv.org/abs/2312.04175