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arXiv 2607.06960math.RTmath.CT
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从(n + 1)项子范畴到(n + 1)项复形

From $(n+1)$-term subcategories to $(n+1)$-term complexes

Tsinghua University(清华大学);Beijing Normal University(北京师范大学)

Zhaotai Zhang, Yu Zhou, Bin Zhu

AI总结:

研究从代数三角范畴的n - 刚性子范畴生成的(n + 1)项子范畴到(n + 1)项复形全子范畴的外三角函子,给出其为满的条件及相关双射,还应用于(n + 1)-卡拉比 - 丘范畴的n - 簇倾斜情况。

摘要:

设n为正整数。给定代数三角范畴𝒯的一个n - 刚性子范畴ℳ,我们明确构造一个从由ℳ生成的𝒯的(n + 1)项子范畴到有界同伦范畴K^b(ℳ)中(n + 1)项复形的全子范畴的外三角函子,它在ℳ上限制为恒等函子。在约化(n - 1)-奥斯特兰德外三角范畴的更广泛背景下,我们给出该函子为满的充分必要条件,此时它诱导外三角范畴关于某个理想的等价。此外,我们在这些范畴的倾斜子范畴之间建立了与突变兼容的双射。最后,我们将这些结果应用于(n + 1)-卡拉比 - 丘范畴中的n - 簇倾斜子范畴和n - 簇倾斜对象。

英文摘要:

Let $n$ be a positive integer. Given an $n$-rigid subcategory $\mathcal{M}$ of an algebraic triangulated category $\mathcal{T}$, we explicitly construct an extriangulated functor from the $(n+1)$-term subcategory of $\mathcal{T}$ generated by $\mathcal{M}$ to the full subcategory of $(n+1)$-term complexes in the bounded homotopy category $K^b(\mathcal{M})$, which restricts to the identity on $\mathcal{M}$. In the broader context of reduced $(n-1)$-Auslander extriangulated categories, we provide necessary and sufficient conditions for such a functor to be full, in which case it induces an equivalence of extriangulated categories modulo a certain ideal. Furthermore, we establish a mutation-compatible bijection between the silting subcategories of these categories. Finally, we apply these results to $n$-cluster tilting subcategories and $n$-cluster tilting objects in $(n+1)$-Calabi-Yau categories.

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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