dorsal/arxiv
View SchemaOn the distribution of shapes of sextic pure number fields
| Authors | Anuj Jakhar, Ravi Kalwaniya, Anwesh Ray, Bidisha Roy |
|---|---|
| Categories | |
| ArXiv ID | 2601.09411vv1 |
| URL | https://arxiv.org/abs/2601.09411 |
| License | http://creativecommons.org/licenses/by/4.0/ |
Abstract
The shape of a number field $K$ of degree $n$ is defined as the equivalence class of the lattice of integers with respect to linear operations that are composites of rotations, reflections, and positive scalar dilations. The shape is a point in the space of shapes $\mathscr{S}_{n-1}$, which is the double quotient $\mathrm{GL}_{n-1}(\mathbb{Z}) \backslash \mathrm{GL}_{n-1}(\mathbb{R}) / \mathrm{GO}_{n-1}(\mathbb{R})$. We investigate the distribution of shapes of pure sextic number fields $K=\mathbb{Q}(\sqrt[6]{m})$, ordered by absolute discriminant. Such fields are partitioned into $20$ distinct Types determined by local conditions at $2$ and $3$, and an explicit integral basis is given in each case. For each Type, the shape of $K$ admits an explicit description in terms of shape parameters. Fixing the sign of $m$ and a Type, we prove that the corresponding shapes are equidistributed along a translated torus orbit in the space of shapes. The limiting distribution is given by an explicit measure expressed as the product of a continuous measure and a discrete measure.
{
"annotation_id": "9be05068-6a62-4987-8dc4-c7d03d55830a",
"date_created": "2026-02-17T05:53:19.899000Z",
"date_modified": "2026-02-17T05:53:19.899000Z",
"file_hash": "d1dfad69cfcbcb09922384d8f65bd205d18755c86ddf6036fa80ba6f8e4b3a63",
"private": false,
"record": {
"abstract": "The shape of a number field $K$ of degree $n$ is defined as the equivalence class of the lattice of integers with respect to linear operations that are composites of rotations, reflections, and positive scalar dilations. The shape is a point in the space of shapes $\\mathscr{S}_{n-1}$, which is the double quotient $\\mathrm{GL}_{n-1}(\\mathbb{Z}) \\backslash \\mathrm{GL}_{n-1}(\\mathbb{R}) / \\mathrm{GO}_{n-1}(\\mathbb{R})$. We investigate the distribution of shapes of pure sextic number fields $K=\\mathbb{Q}(\\sqrt[6]{m})$, ordered by absolute discriminant. Such fields are partitioned into $20$ distinct Types determined by local conditions at $2$ and $3$, and an explicit integral basis is given in each case. For each Type, the shape of $K$ admits an explicit description in terms of shape parameters. Fixing the sign of $m$ and a Type, we prove that the corresponding shapes are equidistributed along a translated torus orbit in the space of shapes. The limiting distribution is given by an explicit measure expressed as the product of a continuous measure and a discrete measure.",
"arxiv_id": "2601.09411",
"authors": [
"Anuj Jakhar",
"Ravi Kalwaniya",
"Anwesh Ray",
"Bidisha Roy"
],
"categories": [
"math.NT"
],
"license": "http://creativecommons.org/licenses/by/4.0/",
"title": "On the distribution of shapes of sextic pure number fields",
"url": "https://arxiv.org/abs/2601.09411",
"version": "v1"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "ad77a45d-95c6-4d1b-89ad-d535ffe469f4",
"id": "arXiv Dataset",
"type": "Model",
"variant": "snapshot-2026-01-17",
"version": "0.1.0"
},
"user_id": 1000002
}