Selmer ranks in twists of CM abelian varieties

Fuente: arXiv
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Autore principale: Shu, Jie
Natura: Preprint
Pubblicazione: 2025
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_version_ 1866909712581132288
author Shu, Jie
author_facet Shu, Jie
contents We prove the Selmer ranks in certain families of $p$-th twists of CM abelian varieties obey the symplectic or unitary distributions. As an application, for a prime $p\geq 3$, we obtain that the twisted Fermat curves $X^p+Y^p=δ$ over a number field containing a primitive $p$-th root of unity are ``largely" unsolvable as $δ$ varies. We also discuss the rank growth in cyclic extensions of prime degree for CM abelian varieties.
format Preprint
id arxiv_https___arxiv_org_abs_2504_21274
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Selmer ranks in twists of CM abelian varieties
Shu, Jie
Number Theory
Primiary 11G10, Secondary 11G05, 11G30, 11D41, 14K22
We prove the Selmer ranks in certain families of $p$-th twists of CM abelian varieties obey the symplectic or unitary distributions. As an application, for a prime $p\geq 3$, we obtain that the twisted Fermat curves $X^p+Y^p=δ$ over a number field containing a primitive $p$-th root of unity are ``largely" unsolvable as $δ$ varies. We also discuss the rank growth in cyclic extensions of prime degree for CM abelian varieties.
title Selmer ranks in twists of CM abelian varieties
topic Number Theory
Primiary 11G10, Secondary 11G05, 11G30, 11D41, 14K22
url https://arxiv.org/abs/2504.21274