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arXiv 2106.12975math.CTmath.AT
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$\infty$ -作为对称幺半群的运算$\infty$ -范畴

$\infty$-operads as symmetric monoidal $\infty$-categories

Rune Haugseng, Joachim Kock

摘要:

利用Lurie的对称Monoidal包络函子给出了$\infty$ -运算的两种新的描述:一类是对称Monoidal $\infty$ -范畴,其基础的对称Monoidal $\infty$ -群胚是自由的;另一类是对称Monoidal $\infty$ -范畴,其上有一个到有限集的对称Monoidal函子(不交并为张量积).后者导致$\infty$ -操作的第三个描述,作为一个本地化的预层$\infty$ -范畴,我们使用这个给一个简单的证明之间的等价性Lurie的和Barwick的模型$\infty$ -操作。

英文摘要:

We use Lurie's symmetric monoidal envelope functor to give two new descriptions of $\infty$-operads: as certain symmetric monoidal $\infty$-categories whose underlying symmetric monoidal $\infty$-groupoids are free, and as certain symmetric monoidal $\infty$-categories equipped with a symmetric monoidal functor to finite sets (with disjoint union as tensor product). The latter leads to a third description of $\infty$-operads, as a localization of a presheaf $\infty$-category, and we use this to give a simple proof of the equivalence between Lurie's and Barwick's models for $\infty$-operads.

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