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Some results on integer-valued polynomials over modules

Ali Reza Naghipour|Javad Sedighi Hafshejani
대한수학회 (The Korean Mathematical Society)|2020.09|대한수학회보 (Bulletin of the KMS)|제57권 제5호|pp. 1165-1176|DOI 10.4134/BKMS.b190846

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키워드

Krull dimensionNoetherian ringInteger-valued polynomialpolynomially torsion-free
주제분류수학

초록

Let $M$ be a module over a commutative ring $R$. In this paper, we study $\Int(R,M)$, the module of integer-valued polynomials on $M$ over $R$, and $\Int_{M}(R)$, the ring of integer-valued polynomials on $R$ over $M$. We establish some properties of Krull dimensions of $\Int(R,M)$ and $\Int_{M}(R)$. We also determine when $\Int(R,M)$ and $\Int_{M}(R)$ are nontrivial. Among the other results, it is shown that $\Int(\mathbb{Z},M)$ is not Noetherian module over $\Int_{M}(\mathbb{Z})\cap\Int(\mathbb{Z})$, where $M$ is a finitely generated $\mathbb{Z}$-module.

Abstract

Let $M$ be a module over a commutative ring $R$. In this paper, we study $\Int(R,M)$, the module of integer-valued polynomials on $M$ over $R$, and $\Int_{M}(R)$, the ring of integer-valued polynomials on $R$ over $M$. We establish some properties of Krull dimensions of $\Int(R,M)$ and $\Int_{M}(R)$. We also determine when $\Int(R,M)$ and $\Int_{M}(R)$ are nontrivial. Among the other results, it is shown that $\Int(\mathbb{Z},M)$ is not Noetherian module over $\Int_{M}(\mathbb{Z})\cap\Int(\mathbb{Z})$, where $M$ is a finitely generated $\mathbb{Z}$-module.

참고문헌 (28)

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