$F$-finiteness of homomorphisms and its descent

$F$-finiteness of homomorphisms and its descent
复制标题

$F$-同态的有限性及其下降

DOI:
10.18910/57681
复制
发表时间:
2012
影响因子:
0.4
通讯作者:
M. Hashimoto
M. Hashimoto
中科院分区:
数学4区
文献类型:
--
作者:
M. Hashimoto

文献摘要

参考文献

相似文献

$p$是一个质数。定义了$\mathbb F_p$-代数的同态的$F$-有限性概念,并讨论了它的一些基本性质.特别地,我们证明了一类关于$\mathbb F_p$-代数的$F$-同态有限性的下降定理.作为一个推论,我们证明如下。设g:B\to C$是Noether $\mathbb F_p$-代数的同态.如果$g$是忠实平坦约化的,且$C$是$F$-有限的,则$B$是$F$-有限的。这是Seydi关于特征为p的优良局部环的结果的推广。
Let $p$ be a prime number. We define the notion of $F$-finiteness of homomorphisms of $\mathbb F_p$-algebras, and discuss some basic properties. In particular, we prove a sort of descent theorem on $F$-finiteness of homomorphisms of $\mathbb F_p$-algebras. As a corollary, we prove the following. Let $g:B\to C$ be a homomorphism of Noetherian $\mathbb F_p$-algebras. If $g$ is faithfully flat reduced, and $C$ is $F$-finite, then $B$ is $F$-finite. This is a generalization of Seydi's result on excellent local rings of characteristic $p$.
DOI: 10.1080/00927870903431241
发表时间: 2009-08
影响因子: 0.7
作者:
M. Hashimoto
通讯作者: M. Hashimoto