English

Generalized determinantal representation of hypersurfaces

Algebraic Geometry 2026-02-19 v1

Abstract

In this article we extend the notion of determinantal representation of hypersurfaces to the determinantal representation of sections of the determinant line bundle of a vector bundle. We give several examples, and prove some necessary conditions for existence of determinantal representation. As an application, we show that for any integer d1,d \geq 1, there is an indecomposable vector bundle EdE_d of rank 22 on P2\mathbb{P}^2 such that almost all curves of degree dd of P2\mathbb{P}^2 arise as the degeneracy loci of a pair of holomorphic sections of EdE_d, upto an automorphism of P2\mathbb{P}^2. We use this result to obtain a linear algebraic application.

Keywords

Cite

@article{arxiv.2602.16685,
  title  = {Generalized determinantal representation of hypersurfaces},
  author = {A. El Mazouni and D. S. Nagaraj and Supravat Sarkar},
  journal= {arXiv preprint arXiv:2602.16685},
  year   = {2026}
}
R2 v1 2026-07-01T10:41:43.905Z