English

Moduli of parabolic bundles on an elliptic curve

Algebraic Geometry 2026-05-26 v1

Abstract

A lot is known about the moduli space of parabolic bundles over curves of genus g2g\geq 2, but the lower genus cases are notably different. The goal of this article is to study the geometry of the moduli space of semistable parabolic bundles of rank 33 with trivial determinant and one marked point on an elliptic curve. We show that this moduli space is rational, give an explicit description of its geometry, its group of automorphisms and also prove a Torelli-type result.

Keywords

Cite

@article{arxiv.2605.25087,
  title  = {Moduli of parabolic bundles on an elliptic curve},
  author = {Roberto Alvarenga and Inder Kaur and Frank Loray},
  journal= {arXiv preprint arXiv:2605.25087},
  year   = {2026}
}