在仿射方案的茎上粘合紧凑生成的 t 结构

IF 0.8 2区 数学 Q2 MATHEMATICS Israel Journal of Mathematics Pub Date : 2024-04-24 DOI:10.1007/s11856-024-2611-3
Michal Hrbek, Jiangsheng Hu, Rongmin Zhu
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引用次数: 0

摘要

我们证明在交换环 R 的派生类中紧凑生成的 t 结构与局部环 \(R_{/frak{m}}/)上紧凑生成的 t 结构的某些族是双射的,其中 \(\frak{m}/)贯穿扎里斯基谱 Spec(R) 中的最大理想。这些族恰恰是满足 Spec(R) 的托马森子集相关序列的胶合条件的族。作为应用之一,我们证明了同向粉碎 t 结构的紧凑生成可以通过最大理想局部检验。结合巴尔默和法维的一个结果,我们得出结论:准相干和准分离方案的⊗-望远镜猜想是一个柄局部性质。此外,我们还推广了特里法伊(Trlifaj)和沙欣卡亚(Şahinkaya)的结果,并在 R 上的共穷型共穷对象与最大素数处的所有局部化 \(R_{/frak{m}}/)上的共穷型共穷对象的兼容族之间建立了明确的双射关系。
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Gluing compactly generated t-structures over stalks of affine schemes

We show that compactly generated t-structures in the derived category of a commutative ring R are in a bijection with certain families of compactly generated t-structures over the local rings \(R_{\frak{m}}\) where \(\frak{m}\) runs through the maximal ideals in the Zariski spectrum Spec(R). The families are precisely those satisfying a gluing condition for the associated sequence of Thomason subsets of Spec(R). As one application, we show that the compact generation of a homotopically smashing t-structure can be checked locally over localizations at maximal ideals. In combination with a result due to Balmer and Favi, we conclude that the ⊗-Telescope Conjecture for a quasi-coherent and quasi-separated scheme is a stalk-local property. Furthermore, we generalize the results of Trlifaj and Şahinkaya and establish an explicit bijection between cosilting objects of cofinite type over R and compatible families of cosilting objects of cofinite type over all localizations \(R_{\frak{m}}\) at maximal primes.

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来源期刊
CiteScore
1.70
自引率
10.00%
发文量
90
审稿时长
6 months
期刊介绍: The Israel Journal of Mathematics is an international journal publishing high-quality original research papers in a wide spectrum of pure and applied mathematics. The prestigious interdisciplinary editorial board reflects the diversity of subjects covered in this journal, including set theory, model theory, algebra, group theory, number theory, analysis, functional analysis, ergodic theory, algebraic topology, geometry, combinatorics, theoretical computer science, mathematical physics, and applied mathematics.
期刊最新文献
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