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ID 63446
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Author
Hayasaka, Futoshi Department of Environmental and Mathematical Sciences, Okayama University Kaken ID researchmap
Abstract
In this paper, we construct indecomposable integrally closed modules of arbitrary rank over a two-dimensional regular local ring. The modules are quite explicitly constructed from a given complete monomial ideal. We also give structural and numerical results on integrally closed modules. These are used in the proof of indecomposability of the modules. As a consequence, we have a large class of indecomposable integrally closed modules of arbitrary rank whose ideal is not necessarily simple. This extends the original result on the existence of indecomposable integrally closed modules and strengthens the non-triviality of the theory developed by Kodiyalam.
Keywords
integral closure
indecomposable module
monomial ideal
regular local ring
Note
© 2022 Elsevier B.V. This manuscript version is made available under the CC-BY-NC-ND 4.0 License. http://creativecommons.org/licenses/by-nc-nd/4.0/. This is the accepted manuscript version. The formal published version is available at [https://doi.org/10.1016/j.jpaa.2022.107026] .
This fulltext is available in Jan. 2024.
Published Date
2022-08
Publication Title
Journal of Pure and Applied Algebra
Volume
volume226
Issue
issue8
Publisher
Elsevier BV
Start Page
107026
ISSN
0022-4049
NCID
AA00705737
Content Type
Journal Article
language
English
OAI-PMH Set
岡山大学
Copyright Holders
© 2022 Elsevier B.V.
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DOI
Web of Science KeyUT
Related Url
isVersionOf https://doi.org/10.1016/j.jpaa.2022.107026
License
http://creativecommons.org/licenses/by-nc-nd/4.0/
Funder Name
Japan Society for the Promotion of Science
助成番号
JP20K03535