arXivDaily arXiv每日学术速递 周一至周五更新
arXiv math/0607075math.AC
收藏

关于局部上同调模的相伴素数集

On the set of associated primes of a local cohomology module

Michael Hellus

摘要:

设$R$是局部Cohen-Macaulay环.证明了$\Ass_R (H^l_I(R))$对任意理想$I$和任意整数$l$是有限的,只要$\Ass_R (H^2_{(x,y)}(R))$对任意$x,y\in R$是有限的,$\Ass_R (H^3_{(x_1,x_2,y)}(R))$对任意$y\in R$和任意正则序列$x_1,x_2\in R$是有限的.进一步证明了$\Ass_R (H^l_I(R))$总是有限的,如果$\dim (R)\leq 3$ .如果$R$几乎是阶乘的,则对于$\dim (R)\leq 4$也是如此。

英文摘要:

Assume $R$ is a local Cohen-Macaulay ring. It is shown that $\Ass_R (H^l_I(R))$ is finite for any ideal $I$ and any integer $l$ provided $\Ass_R (H^2_{(x,y)}(R))$ is finite for any $x,y\in R$ and $\Ass_R (H^3_{(x_1,x_2,y)}(R))$ is finite for any $y\in R$ and any regular sequence $x_1,x_2\in R$. Furthermore it is shown that $\Ass_R (H^l_I(R))$ is always finite if $\dim (R)\leq 3$. The same statement is even true for $\dim (R)\leq 4$ if $R$ is almost factorial.

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。

↑