p-adic elliptic polylogarithms and cubic Chabauty

Fuente: arXiv
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Main Authors: Balakrishnan, Jennifer S., Bianchi, Francesca, Dogra, Netan
Format: Preprint
Published: 2026
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author Balakrishnan, Jennifer S.
Bianchi, Francesca
Dogra, Netan
author_facet Balakrishnan, Jennifer S.
Bianchi, Francesca
Dogra, Netan
contents The Chabauty--Coleman--Kim method, under favourable circumstances, describes the set of integral points of a hyperelliptic curve inside the $p$-adic zeroes of certain transcendental functions. For an elliptic curve of Mordell--Weil rank one, the Chabauty--Coleman--Kim set in depth 2 is given by the zeroes of a (finite union of) quadratic polynomial(s) in the $p$-adic logarithm of the elliptic curve and the local $p$-adic height at $p$. Here, we give an explicit formula for a finite set containing the Chabauty--Coleman--Kim set in depth 3 for an elliptic curve of rank at most 2 under an assumption on non-vanishing of a special value of a $p$-adic $L$-function. The finite set is given by the zeroes of a polynomial in $p$-adic elliptic polylogarithms. We use these formulas to verify new instances of Kim's conjecture.
format Preprint
id arxiv_https___arxiv_org_abs_2604_20662
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle p-adic elliptic polylogarithms and cubic Chabauty
Balakrishnan, Jennifer S.
Bianchi, Francesca
Dogra, Netan
Number Theory
Algebraic Geometry
The Chabauty--Coleman--Kim method, under favourable circumstances, describes the set of integral points of a hyperelliptic curve inside the $p$-adic zeroes of certain transcendental functions. For an elliptic curve of Mordell--Weil rank one, the Chabauty--Coleman--Kim set in depth 2 is given by the zeroes of a (finite union of) quadratic polynomial(s) in the $p$-adic logarithm of the elliptic curve and the local $p$-adic height at $p$. Here, we give an explicit formula for a finite set containing the Chabauty--Coleman--Kim set in depth 3 for an elliptic curve of rank at most 2 under an assumption on non-vanishing of a special value of a $p$-adic $L$-function. The finite set is given by the zeroes of a polynomial in $p$-adic elliptic polylogarithms. We use these formulas to verify new instances of Kim's conjecture.
title p-adic elliptic polylogarithms and cubic Chabauty
topic Number Theory
Algebraic Geometry
url https://arxiv.org/abs/2604.20662