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arXiv 0709.4078math.AC
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同调平坦维数

Homological flat dimensions

Parviz Sahandi, Tirdad Sharif, Siamak Yassemi

摘要:

对于局部环$R$上的有限生成模$M$,完全交维数$\cid_R M$和Cohen-Macaulay维数$\cmdim_R M$的传统概念不能推广到无限生成模的情形.本文引入了不一定有限生成模的相似不变量(即完全交平坦维数和Cohen-Macaulay平坦维数),这些不变量对于有限生成模与相应的经典不变量是一致的.

英文摘要:

For finitely generated module $M$ over a local ring $R$, the conventional notions of complete intersection dimension $\cid_R M$ and Cohen-Macaulay dimension $\cmdim_R M$ do not extend to cover the case of infinitely generated modules. In this paper we introduce similar invariants for not necessarily finitely generated modules, (namely, complete intersection flat and Cohen-Macaulay flat dimensions) which for finitely generated modules, coincide with the corresponding classical ones.

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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