English

Rigid Dualizing Complexes over Commutative Rings and their Functorial Properties

Algebraic Geometry 2024-02-13 v1 Commutative Algebra Category Theory

Abstract

In this paper we treat Grothendieck Duality for noetherian rings via rigid dualizing complexes. In particular, we prove that every ring, essentially finite type over a regular base ring, has a unique rigid dualizing complex. The rigid dualizing complexes have strong functorial properties, allowing us to construct the twisted induction pseudofunctor, which is our ring-theoretic version of the twisted inverse pseudofunctor f!f^{!}. This is the first article of a bigger project, whose final goal is establishing Grothendieck Duality, including global duality for proper maps, for Deligne-Mumford stacks.

Keywords

Cite

@article{arxiv.2402.07150,
  title  = {Rigid Dualizing Complexes over Commutative Rings and their Functorial Properties},
  author = {Mattia Ornaghi and Saurabh Singh and Amnon Yekutieli},
  journal= {arXiv preprint arXiv:2402.07150},
  year   = {2024}
}

Comments

119 pages, 7 figures

R2 v1 2026-06-28T14:45:15.872Z