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arXiv 1608.06236math.GTmath.AT
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PL配边范畴的同伦型 I

The homotopy type of the PL cobordism category. I

Mauricio Gomez Lopez

AI总结:

本文构造分片线性配边范畴并证明其分类空间弱同伦等价于无限环路空间,为在PL拓扑中建立Madsen-Weiss型结果奠定基础。

摘要:

本文引入一个配边范畴 $\mathcal{C}_d^{PL}$,其对象为闭的 $(d-1)$ 维分片线性流形丛,态射为 $d$ 维分片线性配边丛。在本文的主要定理中,我们证明分类空间 $B\mathcal{C}_d^{PL}$ 弱同伦等价于一个无限环路空间。我们将 $\mathcal{C}_d^{PL}$ 视为光滑配边范畴的分片线性类比,后者已因与 Madsen-Weiss 定理的联系而被广泛研究;本文的主要结果是在分片线性拓扑背景下获得 Madsen-Weiss 型结果的第一步。

英文摘要:

In this paper, we introduce a bordism category $\mathcal{C}_d^{PL}$ whose objects are bundles of closed $(d-1)$-dimensional piecewise linear manifolds and whose morphisms are bundles of $d$-dimensional piecewise linear cobordisms. In the main theorem of this article, we show that the classifying space $B\mathcal{C}_d^{PL}$ is weak homotopy equivalent to an infinite loop space. We regard $\mathcal{C}_d^{PL}$ as the piecewise linear analogue of the category of smooth cobordisms which has been studied extensively in connection to the Madsen-Weiss Theorem, and the main result of this paper is a first step towards obtaining Madsen-Weiss type results in the context of piecewise linear topology.

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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