The perfection can be a non-coherent GCD domain

Fuente: arXiv
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Main Author: Simpson, Austyn
Format: Preprint
Published: 2024
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author Simpson, Austyn
author_facet Simpson, Austyn
contents We show that there exists a complete local Noetherian normal domain of prime characteristic whose perfection is a non-coherent GCD domain, answering a question of Patankar in the negative concerning characterizations of $F$-coherent rings. This recovers and extends a result of Glaz using tight closure methods.
format Preprint
id arxiv_https___arxiv_org_abs_2401_00803
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The perfection can be a non-coherent GCD domain
Simpson, Austyn
Commutative Algebra
We show that there exists a complete local Noetherian normal domain of prime characteristic whose perfection is a non-coherent GCD domain, answering a question of Patankar in the negative concerning characterizations of $F$-coherent rings. This recovers and extends a result of Glaz using tight closure methods.
title The perfection can be a non-coherent GCD domain
topic Commutative Algebra
url https://arxiv.org/abs/2401.00803