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Intersection Theory of Hyperquot Schemes on curves

Algebraic Geometry 2025-12-02 v1

Abstract

We study the virtual intersection theory of Hyperquot schemes parameterizing sequences of quotient sheaves of a vector bundle on a smooth projective curve. Our results generalize the Vafa--Intriligator formula for Quot schemes and provide a closed formula for virtual counts of maps from the curve to a partial flag variety.

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Cite

@article{arxiv.2512.00578,
  title  = {Intersection Theory of Hyperquot Schemes on curves},
  author = {Riccardo Ontani and Shubham Sinha and Weihong Xu},
  journal= {arXiv preprint arXiv:2512.00578},
  year   = {2025}
}

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49 pages