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arXiv 1908.02202math.CTcs.LO
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基于函子$\mathcal{C}^{\rm op}\to\mathsf{Cat}$的广义透镜范畴

Generalized Lens Categories via functors $\mathcal{C}^{\rm op}\to\mathsf{Cat}$

David I. Spivak

摘要:

透镜有着丰富的历史,最近受到了应用范畴理论家的极大关注。我们推广了镜头的概念,定义一个范畴$\mathsf{Lens}_F$为任何范畴$\mathcal{C}$和函子$F\colon \mathcal{C}^{\rm op}\to\mathsf{Cat}$,使用Grothendieck结构的变体。本笔记中的所有数学都很简单;目的只是在更广泛的背景下看到透镜,其中可以包括一些密切相关的例子,如戴环空间和开放连续动力系统。

英文摘要:

Lenses have a rich history and have recently received a great deal of attention from applied category theorists. We generalize the notion of lens by defining a category $\mathsf{Lens}_F$ for any category $\mathcal{C}$ and functor $F\colon \mathcal{C}^{\rm op}\to\mathsf{Cat}$, using a variant of the Grothendieck construction. All of the mathematics in this note is straightforward; the purpose is simply to see lenses in a broader context where some closely-related examples, such as ringed spaces and open continuous dynamical systems, can be included.

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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