On the equality of test ideals

On the equality of test ideals
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DOI:
10.1016/j.aim.2024.109559
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发表时间:
2024-04
影响因子:
1.7
通讯作者:
Ian M. Aberbach;Craig Huneke;Thomas Polstra
Ian M. Aberbach;Craig Huneke;Thomas Polstra
中科院分区:
数学1区
文献类型:
--
作者:
Ian M. Aberbach;Craig Huneke;Thomas Polstra

文献摘要

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给出了素特征局部环上检验理想与大检验理想相等的一个自然判据。最值得注意的是,我们证明了每一个局部弱f正则环,其反正则代数在刺穿谱上是noether的,都满足这个准则。
We provide a natural criterion that implies equality of the test ideal and big test ideal in local rings of prime characteristic. Most notably, we show that the criterion is met by every local weaklyF-regular ring whose anti-canonical algebra is Noetherian on the punctured spectrum.