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arXiv 1708.07540math.CTmath.AGmath.ATmath.RT
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稳定导子上的$t$-结构与Grothendieck心

$t$-Structures on stable derivators and Grothendieck hearts

Manuel Saorín, Jan Šťovíček, Simone Virili

AI总结:

本文证明了强稳定导子上的$t$-结构可典范提升至图表范畴,并利用紧生成性质推导出其心为Grothendieck范畴。

摘要:

我们证明,给定任意强稳定导子及其基础三角范畴$\cal D$上的$t$-结构,该$t$-结构典范提升至所有(相干)图表范畴,且心中的每个非相干图表唯一提升为相干图表。我们以此证明,若$t$-结构为紧生成的,则其coaisle在有向同伦余极限下封闭,进而推出心为(Ab.$5$)Abel范畴。此外,若$\cal D$为良生成的代数或拓扑三角范畴,则任何可及嵌入(特别是紧生成)的$t$-结构的心均有生成元。由此可得,良生成的代数或拓扑三角范畴的任何紧生成$t$-结构的心均为Grothendieck范畴。

英文摘要:

We prove that given any strong, stable derivator and a $t$-structure on its base triangulated category $\cal D$, the $t$-structure canonically lifts to all the (coherent) diagram categories and each incoherent diagram in the heart uniquely lifts to a coherent one. We use this to show that the $t$-structure being compactly generated implies that the coaisle is closed under directed homotopy colimit which in turns implies that the heart is an (Ab.$5$) Abelian category. If, moreover, $\cal D$ is a well generated algebraic or topological triangulated category, then the heart of any accessibly embedded (in particular, compactly generated) $t$-structure has a generator. As a consequence, it follows that the heart of any compactly generated $t$-structure of a well generated algebraic or topological triangulated category is a Grothendieck category.

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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