English

On the essential (p)-dimension of parabolic bundles on a curve

Algebraic Geometry 2021-04-21 v2

Abstract

We study the essential dimension and essential p-dimension of the moduli stack of vector bundles over a smooth orbifold curve containing a rational point. We improve the known bounds on this essential dimension and obtain an equality modulo the famous conjecture of Colliot-Thelene, Karpenko and Merkurjev. In the case of essential p-dimension we obtain an equality.

Keywords

Cite

@article{arxiv.2001.04924,
  title  = {On the essential (p)-dimension of parabolic bundles on a curve},
  author = {Ajneet Dhillon and Dinesh Valluri},
  journal= {arXiv preprint arXiv:2001.04924},
  year   = {2021}
}