Completions of Extremely Noncatenary Noetherian UFDs
Commutative Algebra
2025-08-26 v1
Abstract
Let be a complete local ring. We present necessary and sufficient conditions for to be the completion of a local (Noetherian) unique factorization domain such that there exist height one prime ideals of satisfying the following conditions: (1) if and only if , (2) there exist positive integers such that for each , there are two saturated chains of prime ideals of of the form and where is the maximal ideal of , and (3) the prime ideals from condition (2) satisfy if and only if , , and . We also find sufficient conditions for to be the completion of a local (Noetherian) unique factorization domain such that is not catenary for all height one prime ideals of .
Keywords
Cite
@article{arxiv.2508.18102,
title = {Completions of Extremely Noncatenary Noetherian UFDs},
author = {Eli B. Dugan and S. Loepp},
journal= {arXiv preprint arXiv:2508.18102},
year = {2025}
}
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18 pages