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arXiv 0706.2113math.AT
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一类非循环函子

A family of acyclic functors

Antonio Diaz

摘要:

我们确定了一类从偏序集到阿贝尔群的函子,使得它们的高阶直极限为零。这是通过首先刻画投射函子来完成的。然后使用由偏序集的分级产生的谱序列。还包括内射函子和更高的逆极限的对偶版本。分次偏序集包括单纯复形、细分范畴和类单纯偏序集。

英文摘要:

We determine a family of functors from a poset to abelian groups such that the higher direct limits vanish on them. This is done by first characterizing the projective functors. Then a spectral sequence arising from the grading of the poset is used. Also the dual version for injective functors and higher inverse limits is included. Graded posets include simplicial complexes, subdivision categories and simplex-like posets.

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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