Symbolic powers of ideals defining F-pure and strongly F-regular rings
Symbolic powers of ideals defining F-pure and strongly F-regular rings
复制标题
定义 F 纯环和强 F 正则环的理想的符号幂
DOI:
10.1093/imrn/rnx213
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发表时间:
2017
期刊:
影响因子:
--
通讯作者:
C. Huneke
中科院分区:
文献类型:
--
作者:
Eloísa Grifo;C. Huneke
Given a radical ideal $I$ in a regular ring $R$, the Containment Problem of symbolic and ordinary powers of $I$ consists of determining when the containment $I^{(a)} \subseteq I^b$ holds. By work of Ein-Lazersfeld-Smith, Hochster-Huneke and Ma-Schwede, there is a uniform answer to this question, but the resulting containments are not necessarily best possible. We show that a conjecture of Harbourne holds when $R/I$ is F-pure, and prove tighter containments in the case when $R/I$ is strongly F-regular.