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arXiv 2107.14743math.AC
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绝对整闭包的一致性

Coherence of absolute integral closures

Shravan Patankar

摘要:

证明了等特征零诺特完备局域域$R$的绝对整闭包$R^{+}$是不相干的,只要$\dim(R)\geq 2$ .作为推论,我们给出了Asgharzadeh结果的混合特征形式的初等证明,并将其推广到维数$3$。此外,我们应用Aberbach和Hochster的方法来证明这个结果的正特征的版本来研究F-凝聚环,我们的工作自然地表明了史密斯的结果的混合特征模拟。

英文摘要:

We prove that the absolute integral closure $R^{+}$ of an equicharacteristic zero noetherian complete local domain $R$ is not coherent, provided $\dim(R)\geq 2$. As a corollary, we give an elementary proof of the mixed characteristic version of the result due to Asgharzadeh and extend it to dimension $3$. Furthermore, we apply the methods of Aberbach and Hochster used to prove the positive characteristic version of this result to study F-coherent rings and our work naturally suggests a mixed characteristic analogue of a result of Smith.

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。

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