dorsal/arxiv
View SchemaThe Brauer-Manin obstruction of Symmetric products
| Authors | Yongqi Liang, Xingyu Liu, Hui Zhang |
|---|---|
| Categories | |
| ArXiv ID | 2601.06872vv1 |
| URL | https://arxiv.org/abs/2601.06872 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
This article focuses on smooth, projective, and geometrically integral varieties $X$ over a field $k$, whose geometric Picard group $Pic(X_{\overline{k}})$ is torsion-free. We establish an isomorphism$Br(X)/Br(k) \simeq Br_{nr}\bigl(Sym_{X/k}^{n}\bigr)/Br(k)$, where $Sym_{X/k}^{n}$ denotes the $n$-th symmetric product. Using this isomorphism, we investigate the relationship between the Brauer--Manin obstruction to the Hasse principle and weak approximation for rational points on the smooth proejctive model $Sym_{X/k}^{n,sm}$, and the corresponding obstruction for $0$-cycles of degree $n$ on $X$.
{
"annotation_id": "5cd57af2-a91f-4c48-9979-c87482901de7",
"date_created": "2026-02-17T05:53:08.663000Z",
"date_modified": "2026-02-17T05:53:08.663000Z",
"file_hash": "90f904ecdc4adea63a28c04c4e0c7b5af720c0f042b349309ecd422c60857658",
"private": false,
"record": {
"abstract": "This article focuses on smooth, projective, and geometrically integral varieties $X$ over a field $k$, whose geometric Picard group $Pic(X_{\\overline{k}})$ is torsion-free. We establish an isomorphism$Br(X)/Br(k) \\simeq Br_{nr}\\bigl(Sym_{X/k}^{n}\\bigr)/Br(k)$, where $Sym_{X/k}^{n}$ denotes the $n$-th symmetric product. Using this isomorphism, we investigate the relationship between the Brauer--Manin obstruction to the Hasse principle and weak approximation for rational points on the smooth proejctive model $Sym_{X/k}^{n,sm}$, and the corresponding obstruction for $0$-cycles of degree $n$ on $X$.",
"arxiv_id": "2601.06872",
"authors": [
"Yongqi Liang",
"Xingyu Liu",
"Hui Zhang"
],
"categories": [
"math.AG",
"math.NT"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "The Brauer-Manin obstruction of Symmetric products",
"url": "https://arxiv.org/abs/2601.06872",
"version": "v1"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "ed693211-8064-4769-a97e-fe8c4e566b2a",
"id": "arXiv Dataset",
"type": "Model",
"variant": "snapshot-2026-01-17",
"version": "0.1.0"
},
"user_id": 1000002
}