Dual of Algebraic Geometry codes from Hirzebruch surfaces

Fuente: arXiv
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Main Author: Barraud, Alix
Format: Preprint
Published: 2025
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author Barraud, Alix
author_facet Barraud, Alix
contents In this paper, we give an explicit form for the dual of the algebraic geometry code $C_e(a,b)$ defined on an Hirzebruch surface $\mathcal{H}_e$ and parametrized by the divisor $aS_e + bF_e$, where $a,b\in\mathbb{N}$ and $S_e$ and $F_e$ generate the Picard group $\mathrm{Pic}( \mathcal{H}_e)$. Notably, we compute a lower bound for the minimum distance of $C_e(a,b)^\perp$. One of the main ingredient for our study is a new explicit form of the code $C_e(a,b)$ which we provide at the beginning of the paper. We also investigate some puncturing of $C_e(a,b)$, recovering other previously studied AG codes from toric surfaces. Finally, we provide a sufficient condition for orthogonal inclusions between the codes $C_e(a,b)$, and construct CSS quantum codes from them.
format Preprint
id arxiv_https___arxiv_org_abs_2509_07761
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Dual of Algebraic Geometry codes from Hirzebruch surfaces
Barraud, Alix
Algebraic Geometry
Information Theory
94B27, 14J26, 11G25, 14C20
In this paper, we give an explicit form for the dual of the algebraic geometry code $C_e(a,b)$ defined on an Hirzebruch surface $\mathcal{H}_e$ and parametrized by the divisor $aS_e + bF_e$, where $a,b\in\mathbb{N}$ and $S_e$ and $F_e$ generate the Picard group $\mathrm{Pic}( \mathcal{H}_e)$. Notably, we compute a lower bound for the minimum distance of $C_e(a,b)^\perp$. One of the main ingredient for our study is a new explicit form of the code $C_e(a,b)$ which we provide at the beginning of the paper. We also investigate some puncturing of $C_e(a,b)$, recovering other previously studied AG codes from toric surfaces. Finally, we provide a sufficient condition for orthogonal inclusions between the codes $C_e(a,b)$, and construct CSS quantum codes from them.
title Dual of Algebraic Geometry codes from Hirzebruch surfaces
topic Algebraic Geometry
Information Theory
94B27, 14J26, 11G25, 14C20
url https://arxiv.org/abs/2509.07761