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arXiv 1002.3010math.GNmath.GRmath.GT
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亏格为2的闭曲面的基本群的SO(3)- character空间的两个分支

The two components of the SO(3)-character space of the fundamental group of a closed surface of genus 2

Suhyoung Choi

摘要:

利用几何技巧,通过SO(3)的共轭作用,明确地找到亏格为2的闭曲面的基本群的SO(3)-表示空间的拓扑结构.空间有两个组成部分。我们将描述这两个分量的拓扑,并通过用球面三角形参数化它们来描述相应的SU(2)-特征空间。每个分支都有16对1的分支覆盖,分支轨迹是2-球面或2-环面的并集。在此过程中,我们还描述了这两个空间的拓扑结构。稍后我们将把这个结果与将来的工作联系起来,研究更高亏格的情况和SL(3,R)-表示。

英文摘要:

We use geometric techniques to explicitly find the topological structure of the space of SO(3)-representations of the fundamental group of a closed surface of genus 2 quotient by the conjugation action by SO(3). There are two components of the space. We will describe the topology of both components and describe the corresponding SU(2)-character spaces by parametrizing them by spherical triangles. There is the sixteen to one branch-covering for each component, and the branch locus is a union of 2-spheres or 2-tori. Along the way, we also describe the topology of both spaces. We will later relate this result to future work into higher-genus cases and the SL(3,R)-representations.

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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