dorsal/arxiv
View SchemaGraded Betti numbers of the Jacobian algebra and total Tjurina numbers of plane curves
| Authors | Alexandru Dimca, Gabriel Sticlaru |
|---|---|
| Categories | |
| ArXiv ID | 2601.08583vv1 |
| URL | https://arxiv.org/abs/2601.08583 |
| License | http://arxiv.org/licenses/nonexclusive-distrib/1.0/ |
Abstract
In this paper we compute an explicit closed formula for the total Tjurina number $\tau(C)$ of a reduced projective plane curve $C$ in terms of the graded Betti numbers of the corresponding Jacobian algebra. This formula allows a completely new view point on the classical upper bounds for the total Tjurina number $\tau(C)$ of a plane curve $C$ given by A. du Plessis and C. T. C. Wall. This approach yields in particular a new necessary condition for a set of positive integers to be the graded Betti numbers of the Jacobian algebra of a reduced plane curve.
{
"annotation_id": "19f721fb-090e-4ace-87e1-9d989e332f56",
"date_created": "2026-02-17T05:53:16.286000Z",
"date_modified": "2026-02-17T05:53:16.286000Z",
"file_hash": "0126fc47425baaf491e3ee692244c60da9cb860507be3f492e6011a9ecec56f6",
"private": false,
"record": {
"abstract": "In this paper we compute an explicit closed formula for the total Tjurina number $\\tau(C)$ of a reduced projective plane curve $C$ in terms of the graded Betti numbers of the corresponding Jacobian algebra. This formula allows a completely new view point on the classical upper bounds for the total Tjurina number $\\tau(C)$ of a plane curve $C$ given by A. du Plessis and C. T. C. Wall. This approach yields in particular a new necessary condition for a set of positive integers to be the graded Betti numbers of the Jacobian algebra of a reduced plane curve.",
"arxiv_id": "2601.08583",
"authors": [
"Alexandru Dimca",
"Gabriel Sticlaru"
],
"categories": [
"math.AG",
"math.AC"
],
"license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
"title": "Graded Betti numbers of the Jacobian algebra and total Tjurina numbers of plane curves",
"url": "https://arxiv.org/abs/2601.08583",
"version": "v1"
},
"schema_id": "dorsal/arxiv",
"source": {
"execution_id": "c56fbafa-d39f-4cf1-91be-3c0eef67558a",
"id": "arXiv Dataset",
"type": "Model",
"variant": "snapshot-2026-01-17",
"version": "0.1.0"
},
"user_id": 1000002
}