English

Bloch's cycle complex and coherent dualizing complexes in positive characteristic

Algebraic Geometry 2023-02-16 v3

Abstract

Let XX be a separated scheme of dimension dd of finite type over a perfect field kk of positive characteristic pp. In this work, we show that Bloch's cycle complex ZXc\mathbb{Z}^c_X of zero cycles mod pnp^n is quasi-isomorphic to the Cartier operator fixed part of a certain dualizing complex from coherent duality theory. From this we obtain new vanishing results for the higher Chow groups of zero cycles with mod pnp^n coefficients for singular varieties.

Keywords

Cite

@article{arxiv.2104.09662,
  title  = {Bloch's cycle complex and coherent dualizing complexes in positive characteristic},
  author = {Fei Ren},
  journal= {arXiv preprint arXiv:2104.09662},
  year   = {2023}
}

Comments

62 pages. Accepted for publication in Tran AMS. Compared to v2: Due to an update of arXiv:1703.02269 concerning the normality condition (more specifically, Thm. 8.6), Cor. 8.12 in our article is now changed. (The statement in Cor. 0.2(6) remains valid.)

R2 v1 2026-06-24T01:21:08.649Z