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arXiv math/0204152math.AT
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自等价空间与自由环空间

Spaces of self-equivalences and free loops spaces

Yves Felix, Jean-Claude Thomas

摘要:

设M是一个单连通闭定向N维流形。我们证明了对于任何系数域,都存在交换分次代数$Ψ: H_\ast (Ω{aut}_1 M) \to H_{\ast +N}(M^{S^1})$的自然同态,其中$H_\ast (M^{S^1})$是Chas-Sullivan定义的循环代数。像往常一样,${aut}_1 X$(分别$ΩX$)表示与单位映射同伦的自等价幺半群(分别为基循环的空间)的空间X。此外,如果$\bk$的特征为零,则$Ψ$产生同构$π_n(Ω{aut}_1 M) \otimes \bk \cong \hH^{n+N}_{(1)}$,其中$\displaystyle \oplus_{l=1}^\infty \hH^n_{(l)}$表示$H^\ast (M ^{S^1})$上的Hodge分解。

英文摘要:

Let M be a simply-connected closed oriented N-dimensional manifold. We prove that for any field of coefficients there exists a natural homomorphism of commutative graded algebras $Ψ: H_\ast (Ω{aut}_1 M) \to H_{\ast +N}(M^{S^1})$ where $H_\ast (M^{S^1})$ is the loop algebra defined by Chas-Sullivan. As usual ${aut}_1 X$ (resp. $ΩX$) denotes the monoid of the self-equivalences homotopic to the identity map (resp. the space of based loops) of the space X. Moreover, if $\bk$ is of characteristic zero, $Ψ$ yields isomorphisms $π_n(Ω{aut}_1 M) \otimes \bk \cong \hH^{n+N}_{(1)}$ where $\displaystyle \oplus_{l=1}^\infty \hH^n_{(l)}$ denotes the Hodge decomposition on $H^\ast (M ^{S^1})$.

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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