arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1111.7090math.ATmath.GR
收藏

群运算与同伦理论

Group Operads and Homotopy Theory

Wenbin Zhang

摘要:

我们介绍了经典理论之间的相互作用群论和拓扑学的背景下,运算和探索同伦理论的一些应用。本文首先提出了群运算的概念,然后发展了群运算的理论,推广了经典的群、群作用空间、群的覆盖空间和群的分类空间的理论。特别地,拓扑运算的基本群自然是群运算,并且其高阶同伦群自然是具有其基本群运算的作用的运算,并且拓扑$K(π,1)$运算由其基本群运算表征并且可以从其重构。群运算的两个最重要的例子是对称群运算和辫群运算,它们分别为$Ω^{\infty} Σ^{\infty} X$(由于Barratt和Eccles)和$Ω^2 Σ^2 X$(由于Fiedorowicz)提供了群模型。我们结合这两个模型一起产生一个自由群模型的规范稳定$Ω^2 Σ^2 X \hookrightarrow Ω^{\infty} Σ^{\infty} X$,特别是一个自由群模型的同伦纤维。

英文摘要:

We introduce the classical theory of the interplay between group theory and topology into the context of operads and explore some applications to homotopy theory. We first propose a notion of a group operad and then develop a theory of group operads, extending the classical theories of groups, spaces with actions of groups, covering spaces and classifying spaces of groups. In particular, the fundamental groups of a topological operad is naturally a group operad and its higher homotopy groups are naturally operads with actions of its fundamental groups operad, and a topological $K(π,1)$ operad is characterized by and can be reconstructed from its fundamental groups operad. Two most important examples of group operads are the symmetric groups operad and the braid groups operad which provide group models for $Ω^{\infty} Σ^{\infty} X$ (due to Barratt and Eccles) and $Ω^2 Σ^2 X$ (due to Fiedorowicz) respectively. We combine the two models together to produce a free group model for the canonical stabilization $Ω^2 Σ^2 X \hookrightarrow Ω^{\infty} Σ^{\infty} X$, in particular a free group model for its homotopy fibre.

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。

↑