Saturations of powers of certain determinantal ideals
Saturations of powers of certain determinantal ideals
复制标题
DOI:
10.1216/jca-2015-7-2-167
复制
发表时间:
2013-07
期刊:
影响因子:
--
通讯作者:
Kosuke Fukumuro;Taro Inagawa;Koji Nishida
中科院分区:
文献类型:
--
作者:
Kosuke Fukumuro;Taro Inagawa;Koji Nishida
Let $R$ be a Noetherian local ring and $m$ a positive integer. Let $I$ be the ideal of $R$ generated by the maximal minors of an $m \times (m + 1)$ matrix $M$ with entries in $R$. Assuming that the grade of the ideal generated by the $k$-minors of $M$ is at least $m - k + 2$ for $1 \leq \forall k \leq m$, we will study the associated primes of $I^n$ for $\forall n > 0$. Moreover, we compute the saturation of $I^n$ for $1 \leq \forall n \leq m$ in the case where $R$ is a Cohen-Macaulay ring and the entries of $M$ are powers of elements that form an sop for $R$.