English

Irreducibility of Some Quot Schemes on Nodal Curves

Algebraic Geometry 2024-10-16 v2

Abstract

Let CC be an integral projective nodal curve over C\mathbb C, of arithmetic genus g2g \geqslant 2. Let EE be a vector bundle on CC of rank rr and degree ee. Let QuotC/C(E,k,d)\textrm{Quot}_{C/\mathbb C}(E,k,d) denote the Quot scheme of quotients of EE of rank kk and degree dd. We show that QuotC/C(E,k,d)\textrm{Quot}_{C/\mathbb C}(E,k,d) is irreducible for d0d \gg 0.

Keywords

Cite

@article{arxiv.2401.10528,
  title  = {Irreducibility of Some Quot Schemes on Nodal Curves},
  author = {Parvez Rasul},
  journal= {arXiv preprint arXiv:2401.10528},
  year   = {2024}
}

Comments

Comments are welcome. Changes: Corrected some typos. Some details are added to the strategy of the proof in the introduction