English

Syzygy divisors on Hurwitz spaces

Algebraic Geometry 2018-05-03 v1

Abstract

We describe a sequence of effective divisors on the Hurwitz space Hd,gH_{d,g} for dd dividing g1g-1 and compute their cycle classes on a partial compactification. These divisors arise from vector bundles of syzygies canonically associated to a branched cover. We find that the cycle classes are all proportional to each other.

Keywords

Cite

@article{arxiv.1805.00648,
  title  = {Syzygy divisors on Hurwitz spaces},
  author = {Anand Deopurkar and Anand Patel},
  journal= {arXiv preprint arXiv:1805.00648},
  year   = {2018}
}

Comments

13 pages. For the issue of Contemporary Mathematics titled "Higher genus curves in mathematical physics and arithmetic geometry."