Reduction of Plane Quartics and Cayley Octads

Fuente: arXiv
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Autori principali: van Bommel, Raymond, Docking, Jordan, Dokchitser, Vladimir, Lercier, Reynald, García, Elisa Lorenzo
Natura: Preprint
Pubblicazione: 2023
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author van Bommel, Raymond
Docking, Jordan
Dokchitser, Vladimir
Lercier, Reynald
García, Elisa Lorenzo
author_facet van Bommel, Raymond
Docking, Jordan
Dokchitser, Vladimir
Lercier, Reynald
García, Elisa Lorenzo
contents We give a conjectural characterisation of the stable reduction of plane quartics over local fields in terms of their Cayley octads. This results in p-adic criteria that efficiently give the stable reduction type amongst the 42 possible types, and whether the reduction is hyperelliptic or not. These criteria are in the vein of the machinery of "cluster pictures" for hyperelliptic curves. We also construct explicit families of quartic curves that realise all possible stable types, against which we test these criteria. We give numerical examples that illustrate how to use these criteria in practice.
format Preprint
id arxiv_https___arxiv_org_abs_2309_17381
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Reduction of Plane Quartics and Cayley Octads
van Bommel, Raymond
Docking, Jordan
Dokchitser, Vladimir
Lercier, Reynald
García, Elisa Lorenzo
Number Theory
11G20 (primary), 11Y99, 14H10, 14H45, 14Q05
We give a conjectural characterisation of the stable reduction of plane quartics over local fields in terms of their Cayley octads. This results in p-adic criteria that efficiently give the stable reduction type amongst the 42 possible types, and whether the reduction is hyperelliptic or not. These criteria are in the vein of the machinery of "cluster pictures" for hyperelliptic curves. We also construct explicit families of quartic curves that realise all possible stable types, against which we test these criteria. We give numerical examples that illustrate how to use these criteria in practice.
title Reduction of Plane Quartics and Cayley Octads
topic Number Theory
11G20 (primary), 11Y99, 14H10, 14H45, 14Q05
url https://arxiv.org/abs/2309.17381