A counterexample to the rigidity conjecture for rings

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An example is constructed of a local ring and a module of finite type and finite projective dimension over that ring such that the module is not rigid. This shows that the rigidity conjecture is false.
4 pages

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Commutative Algebra

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http://salesiana.dossiersoluciones.com/handle/123456789/152851

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9307225
 http://arxiv.org/abs/math/9307225
 Bull. Amer. Math. Soc. (N.S.) 29 (1993) 94-97

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arXiv