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arXiv 2103.11524math.ACmath.AG
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整扩张的微分模的局部上同调

Local Cohomology of Module of Differentials of integral extensions

S. P. Dutta

摘要:

本文主要研究了Ω_(B/R),Ω_(B/V)(Ω_(B/k))的最高非零局部上同调模,其中R是完备正则局部环或完备局部正规整环,其系数环为V(域k),B是它在Q(R)的一个代数扩张中的整闭包.类似的问题也研究了正常域R包含一个域k的特征0。在这方面,新的观察直接和性质的整扩张。

英文摘要:

The main focus of this paper is on determining the highest non-vanishing local cohomology modules of Ω_(B/R), Ω_(B/V)(Ω_(B/k)) where R is either a complete regular local ring or a complete local normal domain with coefficient ring V (field k) and B is its integral closure in an algebraic extension of Q(R). Similar problem is also studied over a normal domain R containing a field k of characteristic 0. In this connection new observations on the direct summand property for integral extensions are also presented.

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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