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arXiv 0808.3258math.AC
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Ratliff-Rush滤过、正则性和高阶联合分次模的深度:II部分

Ratliff-Rush Filtration, regularity and depth of Higher Associated graded modules: Part II

Tony J. Puthenpurakal

摘要:

设$(A,\m)$是一个Noether局部环,$M$是一个维数为$r \geq 2$的随机生成的PDMATHABMOPDMATHABMP-模,$I$是$M$的一个理想.设置$L^I(M) = \bigoplus_{n\geq 0}M/I^{n+1}M$。本文第一部分证明了$L^I(M)$是$I$的Rees代数$\R$上的模,并给出了$L^I(M)$在研究伴随分次模$G_I(M)$中的应用.在本文中,我们给出了许多进一步的应用,我们的技术,最值得注意的是一个重新制定的经典结果由于成田在Ratliff拉什过滤。该重构可以扩展到所有维度$\geq 2$。

英文摘要:

Let $(A,\m)$ be a Noetherian local ring, let $M$ be a finitely generated \CM $A$-module of dimension $r \geq 2$ and let $I$ be an ideal of definition for $M$. Set $L^I(M) = \bigoplus_{n\geq 0}M/I^{n+1}M$. In part one of this paper we showed that $L^I(M)$ is a module over $\R$, the Rees algebra of $I$ and we gave many applications of $L^I(M)$ to study the associated graded module, $G_I(M)$. In this paper we give many further applications of our technique; most notable is a reformulation of a classical result due to Narita in terms of the Ratliff-Rush filtration. This reformulation can be extended to all dimensions $\geq 2$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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