A minimal resolution for the Jacobian ideal of a generic curve arrangement
Algebraic Geometry
2025-08-11 v3 Commutative Algebra
Abstract
We consider a nodal curve in the complex projective plane whose irreducible components are smooth. A minimal set of generators for the first and second syzygy modules of the Jacobian ideal of are described, using recent results by Th. Kahle, H. Schenck, B. Sturmfels and M. Wiesmann on the likelihood correspondence. The elements of have explicit formulas in terms of the equations of the irreducible components of . Similar results, including extensions to hypersurfaces arrangements in were obtained by R. Burity, Z. Ramos, A. Simis and St. Toh\u aneanu with a genericity assumption which may not be easy to test in practice.
Cite
@article{arxiv.2508.04439,
title = {A minimal resolution for the Jacobian ideal of a generic curve arrangement},
author = {Alexandru Dimca and Gabriel Sticlaru},
journal= {arXiv preprint arXiv:2508.04439},
year = {2025}
}
Comments
v3. Theorems 1.4, 1.5 and 1.6 are new