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arXiv 2312.08596math.ATmath.AGmath.CTmath.RT
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非诺特张量三角范畴的支撑理论

Support theories for non-Noetherian tensor triangulated categories

Changhan Zou

AI总结:

本文通过引入小支撑概念,将BIK支撑理论推广至非诺特情形,证明有限群稳定模范畴的典范层化,并比较了与Sanders支撑理论的一致性及弱诺特假设的必要性。

摘要:

我们将Benson--Iyengar--Krause的支撑理论推广到非诺特情形,通过引入模的小支撑的新概念。这使我们能够证明有限群的稳定模范畴被Tate上同调环的作用典范地层化,尽管该环很少是诺特的。在张量三角背景下,我们比较了W. Sanders提出的支撑理论(该理论将Balmer--Favi支撑理论推广到弱诺特情形之外)与我们推广的BIK支撑理论。当Balmer谱与单位的内态射环的Zariski谱同胚时,两种支撑理论及其相关的层化理论是一致的。我们还证明了一个否定结果,即Balmer--Favi--Sanders支撑理论只能层化其谱是弱诺特的范畴。这为Barthel、Heard和B. Sanders工作中的弱诺特假设提供了额外的理由。另一方面,检测性质和局部到全局原理在一般情形下仍然是有意义的。

英文摘要:

We extend the support theory of Benson--Iyengar--Krause to the non-Noetherian setting by introducing a new notion of small support for modules. This enables us to prove that the stable module category of a finite group is canonically stratified by the action of the Tate cohomology ring, despite the fact that this ring is rarely Noetherian. In the tensor triangular context, we compare the support theory proposed by W. Sanders (which extends the Balmer--Favi support theory beyond the weakly Noetherian setting) with our generalized BIK support theory. When the Balmer spectrum is homeomorphic to the Zariski spectrum of the endomorphism ring of the unit, the two support theories coincide as do their associated theories of stratification. We also prove a negative result which states that the Balmer--Favi--Sanders support theory can only stratify categories whose spectra are weakly Noetherian. This provides additional justification for the weakly Noetherian hypothesis in the work of Barthel, Heard and B. Sanders. On the other hand, the detection property and the local-to-global principle remain interesting in the general setting.

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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