Quasi-Gorenstein (Normal) Finite Covers in Arbitrary Characteristic
Commutative Algebra
2025-03-28 v2
Abstract
We show that any complete local (normal) domain admits a module-finite quasi-Gorenstein normal (complete local) domain extension. In the geometric vein, we show that any normal projective variety over a field admits a finite surjective morphism from a normal quasi-Gorenstein projective variety . Notably, our results resolve the previously open case for residual characteristic two.
Keywords
Cite
@article{arxiv.2410.15149,
title = {Quasi-Gorenstein (Normal) Finite Covers in Arbitrary Characteristic},
author = {Ehsan Tavanfar},
journal= {arXiv preprint arXiv:2410.15149},
year = {2025}
}
Comments
Two sections are added. One section establishes the quasi-quasi-Gorenstein finite covers for projective varieties. The other one gives a converse to a result of Paul C. Roberts, with an application. Accepted for publication in the Proceedings of the American Mathematical Society