A class of principal ideal rings arising from the converse of the Chinese remainder theorem

Let R be a (nonzero commutative unital) ring. If I and J are ideals of R such that R/I⊕R/J is a cyclic R-module, then I+J=R. The rings R such that R/I⊕R/J is a cyclic R-module for all distinct nonzero proper ideals I and J of R are the following three types of principal ideal rings: fields, rings is...

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Main Author: David E. Dobbs
Format: Article
Language:English
Published: Hindawi Limited 2006-01-01
Series:International Journal of Mathematics and Mathematical Sciences
Online Access:http://dx.doi.org/10.1155/IJMMS/2006/19607
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spelling doaj-44dcdb2cda1241e28e96f31a44e9ec2c2020-11-25T00:11:06ZengHindawi LimitedInternational Journal of Mathematics and Mathematical Sciences0161-17121687-04252006-01-01200610.1155/IJMMS/2006/1960719607A class of principal ideal rings arising from the converse of the Chinese remainder theoremDavid E. Dobbs0Department of Mathematics, University of Tennessee, Knoxville 37996-1300, TN, USALet R be a (nonzero commutative unital) ring. If I and J are ideals of R such that R/I⊕R/J is a cyclic R-module, then I+J=R. The rings R such that R/I⊕R/J is a cyclic R-module for all distinct nonzero proper ideals I and J of R are the following three types of principal ideal rings: fields, rings isomorphic to K×L for the fields K and L, and special principal ideal rings (R,M) such that M2=0.http://dx.doi.org/10.1155/IJMMS/2006/19607
collection DOAJ
language English
format Article
sources DOAJ
author David E. Dobbs
spellingShingle David E. Dobbs
A class of principal ideal rings arising from the converse of the Chinese remainder theorem
International Journal of Mathematics and Mathematical Sciences
author_facet David E. Dobbs
author_sort David E. Dobbs
title A class of principal ideal rings arising from the converse of the Chinese remainder theorem
title_short A class of principal ideal rings arising from the converse of the Chinese remainder theorem
title_full A class of principal ideal rings arising from the converse of the Chinese remainder theorem
title_fullStr A class of principal ideal rings arising from the converse of the Chinese remainder theorem
title_full_unstemmed A class of principal ideal rings arising from the converse of the Chinese remainder theorem
title_sort class of principal ideal rings arising from the converse of the chinese remainder theorem
publisher Hindawi Limited
series International Journal of Mathematics and Mathematical Sciences
issn 0161-1712
1687-0425
publishDate 2006-01-01
description Let R be a (nonzero commutative unital) ring. If I and J are ideals of R such that R/I⊕R/J is a cyclic R-module, then I+J=R. The rings R such that R/I⊕R/J is a cyclic R-module for all distinct nonzero proper ideals I and J of R are the following three types of principal ideal rings: fields, rings isomorphic to K×L for the fields K and L, and special principal ideal rings (R,M) such that M2=0.
url http://dx.doi.org/10.1155/IJMMS/2006/19607
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