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arXiv 2302.07810math.CT
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笛卡尔 Gray-幺半群双范畴

Cartesian Gray-Monoidal Double Categories

Edward Morehouse

AI总结:

本文通过引入局部立方Gray范畴和双松弛函子,为对称Gray-幺半群双范畴建立了笛卡尔结构,并利用曲面图给出其简洁表示。

摘要:

本文给出了对称 Gray-幺半群双范畴的笛卡尔结构。为此,我们首先引入局部立方 Gray 范畴,这是一种三维范畴结构,类似于经典的局部球状 Gray 范畴。其典型例子由双范畴本身及其函子、变换和修改组成。一个单对象的局部立方 Gray 范畴就是一个 Gray-幺半群双范畴。我们以类似于 2-范畴的方式为这些结构引入辫、syllepsis 和对称性。添加笛卡尔结构需要引入双范畴的双松弛函子来管理副本的顺序。所得理论在代数上相当复杂,这在很大程度上是由于将高维边界约束线性化所带来的繁琐工作。幸运的是,它在曲面图的图形演算中具有相对简单且引人注目的表示,我们将在文中给出这一表示。

英文摘要:

In this paper we present cartesian structure for symmetric Gray-monoidal double categories. To do this we first introduce locally cubical Gray categories, which are three-dimensional categorical structures analogous to classical, locally globular, Gray categories. The motivating example comprises double categories themselves, together with their functors, transformations, and modifications. A one-object locally cubical Gray category is a Gray-monoidal double category. Braiding, syllepsis, and symmetry for these is introduced in a manner analogous to that for 2-categories. Adding cartesian structure requires the introduction of doubly-lax functors of double categories to manage the order of copies. The resulting theory is algebraically rather complex, largely due to the bureaucracy of linearizing higher-dimensional boundary constraints. Fortunately, it has a relatively simple and compelling representation in the graphical calculus of surface diagrams, which we present.

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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