arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2005.10496math.CTmath.ATmath.KT
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双变Yoneda引理与$(\infty,2)$ -对应范畴

A bivariant Yoneda lemma and $(\infty,2)$-categories of correspondences

Andrew W. Macpherson

摘要:

大家都知道,如果你有一个双变同调论,满足一个碱基变化公式,你就得到了一类对应的表示。对于其中协变和逆变转移映射相互邻接的理论,这些数据实际上是等价的。换句话说,一个2-范畴的对应是将一组满足基变化公式的右伴随附加到一个给定的1-范畴上的通用方法。通过Yoneda范式的双变形式,给出了高阶范畴理论中对应的定义,并证明了双变函子的一个扩张定理。此外,在二维Grothendieck结构存在的条件下,我提供了上述泛性质的证明。从道德上讲,这些方法采用了高阶范畴理论的“内在逻辑”:它们没有明确地使用任何特定的模型。

英文摘要:

Everyone knows that if you have a bivariant homology theory satisfying a base change formula, you get an representation of a category of correspondences. For theories in which the covariant and contravariant transfer maps are in mutual adjunction, these data are actually equivalent. In other words, a 2-category of correspondences is the universal way to attach to a given 1-category a set of right adjoints that satisfy a base change formula. Through a bivariant version of the Yoneda paradigm, I give a definition of correspondences in higher category theory and prove an extension theorem for bivariant functors. Moreover, conditioned on the existence of a 2-dimensional Grothendieck construction, I provide a proof of the aforementioned universal property. The methods, morally speaking, employ the `internal logic' of higher category theory: they make no explicit use of any particular model.

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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