English

A Sheaf Cohomology Restriction Formula on Toric Complete Intersections

Algebraic Geometry 2024-01-17 v1 High Energy Physics - Theory K-Theory and Homology Rings and Algebras

Abstract

We prove a sheaf cohomology restriction (SCORE) formula for a class of vector bundles on complete intersections in toric varieties. The formula enables one to compute cohomology products on the complete intersection XX via computations on the ambient space VV and potentially compute certain quantum corrections to the classical sheaf cohomology ring. Schematically the formula reads (s1,...,sr)X=(s1,...,sr,g)V(s_1,...,s_r)_X = (s_1,...,s_r, g)_V with gg being an explicitly described quantity derived from the monad data of the bundle.

Keywords

Cite

@article{arxiv.2401.07293,
  title  = {A Sheaf Cohomology Restriction Formula on Toric Complete Intersections},
  author = {Zhentao Lyu},
  journal= {arXiv preprint arXiv:2401.07293},
  year   = {2024}
}

Comments

13 pages, comments welcome!

R2 v1 2026-06-28T14:16:22.397Z