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arXiv 2203.10588math.AT
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关于Gorenstein空间的拓扑复杂性

On Topological Complexity of Gorenstein spaces

Smail Benzaki, Youssef Rami

AI总结:

本文利用Sullivan有理同伦论赋予Ext向量空间分次交换代数结构,引入Ext版高阶、模及同调拓扑复杂性,并在Gorenstein空间上与普通不变量比较,同时通过2-胞腔CW复形和悬挂两个情形展示奇特征域上Adams-Hilton模型的优势。

摘要:

本文利用Sullivan对单连通有限型CW复形的有理同伦论方法,赋予$\mathbb{Q}$-向量空间$\mathcal{E}xt_{C^{\ast}(X;\mathbb{Q})}(\mathbb{Q},C^{\ast}(X;\mathbb{Q}))$一个分次交换代数结构。由此我们引入$X$的有理化$X_0$(相应地,$X$在$\mathbb{Q}$上)的高阶(相应地,模、同调)拓扑复杂性的$\mathcal{E}xt$-版本。随后,我们对Gorenstein空间的这些不变量与其各自的普通版本进行比较。在此背景下,我们还通过两个情形强调了奇特征域上Adams-Hilton模型的优势:第一种情形是空间为$2$-胞腔CW复形,第二种情形是空间为悬挂。

英文摘要:

In this paper, using Sullivan's approach to rational homotopy theory of simply-connected finite type CW complexes, we endow the $\mathbb{Q}$-vector space $\mathcal{E}xt_{C^{\ast}(X;\mathbb{Q})}(\mathbb{Q},C^{\ast}(X;\mathbb{Q}))$ with a graded commutative algebra structure. This leads us to introduce the $\mathcal{E}xt$-version of higher (resp. module, homology) topological complexity of $X_0$, the rationalization of $X$ (resp. of $X$ over $\mathbb{Q}$). We then make comparisons between these invariants and their respective ordinary ones for Gorenstein spaces. We also highlight, in this context, the benefit of Adams-Hilton models over a field of odd characteristics especially through two cases, the first one when the space is a $2$-cell CW-complex and the second one when it is a suspension.

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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