English

Overconvergent prismatic cohomology

Algebraic Geometry 2023-08-21 v1 Number Theory

Abstract

In this note I define an overconvergent version of prisms and prismatic cohomology as introduced by Bhatt and Scholze and show that overconvergent prismatic cohomology specialises to pp-adic cohomologies, like Monsky-Washnitzer resp. rigid cohomology for smooth varieties over a perfect field, the de Rham cohomology of smooth weak formal schemes over a perfectoid ring and the \'{e}tale cohomology of its generic fibre. Besides, I give an overconvergent version of the complex AΩA\Omega of Bhatt-Morrow-Scholze and relate it to overconvergent prismatic cohomology.

Keywords

Cite

@article{arxiv.2308.09423,
  title  = {Overconvergent prismatic cohomology},
  author = {Andreas Langer},
  journal= {arXiv preprint arXiv:2308.09423},
  year   = {2023}
}
R2 v1 2026-06-28T11:58:35.335Z