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arXiv 1704.03082math.CV
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用全纯形式表示开Riemann surface上的de Rham上同调类

Representing de Rham cohomology classes on an open Riemann surface by holomorphic forms

Antonio Alarcon, Finnur Larusson

摘要:

设$X$为连通开黎曼曲面。设$Y$是$\mathbb C^n$的解析子簇$n\geq 1$的光滑轨迹中的Oka域,使得$Y$的凸壳是$\mathbb C^n$的全部.设$\mathscr O_*(X, Y)$是非退化全纯映射空间$X\to Y$ .在$X$上取一个全纯$1$ -形式$θ$,不恒为零,让$π:\mathscr O_*(X,Y) \to H^1(X,\mathbb C^n)$发送一个映射$g$到$gθ$的上同调类。我们的主要定理指出,$π$是一个塞尔纤维化。这个结果包含了1971年Kusunoki和Sainouchi的定理,即$X$上的全纯形式的周期和因子都可以任意指定。它还包含了Forstneric和Larusson在2016年证明的极小曲面理论中的两个参数h-原理。

英文摘要:

Let $X$ be a connected open Riemann surface. Let $Y$ be an Oka domain in the smooth locus of an analytic subvariety of $\mathbb C^n$, $n\geq 1$, such that the convex hull of $Y$ is all of $\mathbb C^n$. Let $\mathscr O_*(X, Y)$ be the space of nondegenerate holomorphic maps $X\to Y$. Take a holomorphic $1$-form $θ$ on $X$, not identically zero, and let $π:\mathscr O_*(X,Y) \to H^1(X,\mathbb C^n)$ send a map $g$ to the cohomology class of $gθ$. Our main theorem states that $π$ is a Serre fibration. This result subsumes the 1971 theorem of Kusunoki and Sainouchi that both the periods and the divisor of a holomorphic form on $X$ can be prescribed arbitrarily. It also subsumes two parametric h-principles in minimal surface theory proved by Forstneric and Larusson in 2016.

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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