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arXiv 1802.07538math.CT
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从严到底有多严?

How strict is strictification?

Alexander Campbell

摘要:

本文的主题是严格化附加的高级结构,它联系了三维范畴论的两个基本基础:$2$-范畴的$\mathbf{Gray}$-范畴和双范畴的三范畴。我们表明,-远远不需要充分的弱点所提供的定义的tricategory理论-这个附加可以$\textit{strictly}$丰富的对称封闭multicategory的bicategories定义的Verity。此外,我们表明,这个附加的基础上的附加的双范畴丰富的对称multicategories。附录介绍了伪双范畴的对称闭多范畴,Verity的双范畴的对称多范畴完全嵌入其中。

英文摘要:

The subject of this paper is the higher structure of the strictification adjunction, which relates the two fundamental bases of three-dimensional category theory: the $\mathbf{Gray}$-category of $2$-categories and the tricategory of bicategories. We show that -- far from requiring the full weakness provided by the definitions of tricategory theory -- this adjunction can be $\textit{strictly}$ enriched over the symmetric closed multicategory of bicategories defined by Verity. Moreover, we show that this adjunction underlies an adjunction of bicategory-enriched symmetric multicategories. An appendix introduces the symmetric closed multicategory of pseudo double categories, into which Verity's symmetric multicategory of bicategories embeds fully.

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