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arXiv 1110.1963math.AC
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平方自由单项理想的因子深度

Depth of factors of square free monomial ideals

Dorin Popescu

摘要:

设$I$是域上多项式代数的理想,由$r$的次数为$d$的无平方单项式生成.如果$r$大于(或等于,如果$I$不是主的)次数为$d+1$的$I$的无平方单项式的个数,则为$\depth_SI= d$。设$J\subsetneq I$,$J\not =0$由次数为$\geq d+1$的无平方单项式生成.如果$r$大于次数为$d+1$的$I\setminus J$的平方自由单项式的数目,或者更一般地,$I/J$的斯坦利深度为$d$,则$\depth_SI/J= d$。特别是,斯坦利猜想在这些情况下成立。

英文摘要:

Let $I$ be an ideal of a polynomial algebra over a field, generated by $r$ square free monomials of degree $d$. If $r$ is bigger (or equal, if $I$ is not principal) than the number of square free monomials of $I$ of degree $d+1$, then $\depth_SI= d$. Let $J\subsetneq I$, $J\not =0$ be generated by square free monomials of degree $\geq d+1$. If $r$ is bigger than the number of square free monomials of $I\setminus J$ of degree $d+1$, or more generally the Stanley depth of $I/J$ is $d$, then $\depth_SI/J= d$. In particular, Stanley's Conjecture holds in theses cases.

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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