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Proceedings of the American Mathematical Society

ISSN 1088-6826(online) ISSN 0002-9939(print)

 

 

Cancellation counterexamples in Krull dimension $ 1$


Authors: Robert M. Guralnick, Lawrence S. Levy and Robert B. Warfield
Journal: Proc. Amer. Math. Soc. 109 (1990), 323-326
MSC: Primary 13C05; Secondary 16A64
MathSciNet review: 1009990
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Abstract: We show that direct-sum cancellation can fail for modules in a single genus, over commutative noetherian rings of dimension 1. The example provides an application of noncommutative methods (including "wild representation type") to commutative ring theory.


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DOI: https://doi.org/10.1090/S0002-9939-1990-1009990-3
Article copyright: © Copyright 1990 American Mathematical Society