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arXiv 2004.07362math.AT
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Hodge分解与Poincaré对偶模型

Hodge decompositions and Poincare duality models

Pavel Hajek

AI总结:

本文通过扩展CDGA结构,构造具有Hodge分解的CDGA,并证明其自然诱导出V的微分Poincaré对偶模型,消除了原有假设中的额外条件。

摘要:

我们扩展一个CDGA $V$,在其上同调中引入一个度数为$n$的完美配对,以扩展为一个CDGA $\hat V$,使其在链水平上具有配对度数为$n$,并且$\hat V$允许Hodge分解,并且可以退化到$V$,保持同调上的配对;这里我们假设$V$是1连通的,或者$V$是连通的,有限型的,并且$n$是奇数。我们证明$\hat V$的Hodge分解自然地诱导出$V$的微分Poincaré对偶模型。假设$H(V)$是1连通的,我们将我们的扩展应用于$V$的Sullivan模型,在证明$V$的1连通微分Poincaré对偶模型的存在性和“唯一性”时,由Lambrechts & Stanley应用;我们消除了唯一性陈述中的额外假设,包括当$n$为奇数时$H^2(V)=0$。

英文摘要:

We extend a CDGA $V$ with a perfect pairing of degree $n$ on cohomology to a CDGA $\hat V$ with a pairing of degree $n$ on chain level such that $\hat V$ admits a Hodge decomposition and retracts onto $V$ preserving the pairing on cohomology; here we suppose that $V$ is either 1-connected, or that $V$ is connected, of finite type, and $n$ is odd. We show that a Hodge decomposition of $\hat V$ induces a differential Poincaré duality model of $V$ in a natural way. Assuming that $H(V)$ is 1-connected, we apply our extension to a Sullivan model of $V$ in the proof of the existence and "uniqueness" of a 1-connected differential Poincaré duality model of $V$ by Lambrechts & Stanley; we eliminate their extra assumptions in the uniqueness statement, including $H^2(V)=0$ if $n$ is odd.

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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