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arXiv 0810.1017math.AC
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关于理想幂的线性分解

On linear resolution of powers of an ideal

Keivan Borna

摘要:

本文推广了Herzog,Hibi和Zheng关于理想幂正则性的一个上界结果.作为本文的主要结果,我们给出了一个简单的关于理想的Rees代数的判据,证明了这个理想的足够高的幂具有线性分解。我们适用于两个重要的理想$J,J_{1}$的标准,我们表明,$J^{k},$和$J_{1}^{k}$具有线性分辨率当且仅当$k\neq 2.$的程序,我们在这项工作中包括编码在计算机代数包CoCoA。

英文摘要:

In this paper we give a generalization of a result of Herzog, Hibi, and Zheng providing an upper bound for regularity of powers of an ideal. As the main result of the paper, we give a simple criterion in terms of Rees algebra of a given ideal to show that high enough powers of this ideal have linear resolution. We apply the criterion to two important ideals $J,J_{1}$ for which we show that $J^{k},$ and $J_{1}^{k}$ have linear resolution if and only if $k\neq 2.$ The procedures we include in this work is encoded in computer algebra package CoCoA.

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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