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arXiv 2406.01404math.CV
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Sobolev环路空间到射影希尔伯特空间的全纯嵌入不存在性

Non-existence of a holomorphic embedding of the Sobolev loop space into the projective Hilbert space

Anakkar M., S. Ivashkovich

AI总结:

本文对比射影希尔伯特空间与黎曼球面Sobolev环路空间上的亚纯映射性质,证明后者无法全纯嵌入甚至不存在到前者的非退化亚纯映射。

摘要:

本文旨在研究取值于两类复希尔伯特流形的亚纯映射性质,两类流形分别为射影希尔伯特空间$\mathbb{P}(l^2)$与黎曼球面的Sobolev环路空间$L\mathbb{P}^1$。研究发现二者的相关性质存在显著差异。基于该研究可得到推论:$L\mathbb{P}^1$不存在到$\mathbb{P}(l^2)$的闭全纯嵌入。换言之,尽管$L\mathbb{P}^1$是凯勒流形且其上的亚纯函数可分离点,它仍不是射影希尔伯特簇。此外本文证明,$L\mathbb{P}^1$甚至不存在到$\mathbb{P}(l^2)$的非退化亚纯映射。

英文摘要:

The goal of this paper is to understand the properties of meromorphic mappings with values in two model complex Hibert manifolds: projective Hilbert space $\pp(l^2)$ and Sobolev loop space of the Riemann sphere $L\pp^1$. It occurs that these properties are quite different. Based on our study we obtain as a corollary that $L\pp^1$ does not admit a closed holomorphic embedding to $\pp(l^2)$. In other words $L\pp^1$ is {\slsf not} a projective Hilbert variety despite of the fact that it is Kähler and meromorphic functions separate points on it. Moreover, we prove that $L\pp^1$ doesn't admit even a non-degenerate meromorphic map to $\pp (l^2)$.

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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