English

A note on cohomological boundedness for $F$-divided sheaves and $\mathcal{D}$-modules

Algebraic Geometry 2025-11-05 v2

Abstract

Let XX be a smooth proper scheme over an algebraically closed field kk in characteristic pp. In this short note, by interpreting DX\mathcal{D}_{X}-modules as FF-divided sheaves and establishing a cohomological boundedness property for FF-divided sheaves, we prove that any OX\mathcal{O}_{X}-coherent DX\mathcal{D}_{X}-module has finite dimensional DX\mathcal{D}_{X}-module cohomology.

Keywords

Cite

@article{arxiv.2506.23526,
  title  = {A note on cohomological boundedness for $F$-divided sheaves and $\mathcal{D}$-modules},
  author = {Xiaodong Yi},
  journal= {arXiv preprint arXiv:2506.23526},
  year   = {2025}
}

Comments

15 pages. Typos fixed. All comments welcome!